src/Input/FGMacOSXEventInput.cxx

   1 // FGMacOSXEventInput.cxx -- handle event driven input devices for Mac OS X
   2 //
   3 // Written by Tatsuhiro Nishioka, started Aug. 2009.
   4 //
   5 // Copyright (C) 2009 Tasuhiro Nishioka, tat <dot> fgmacosx <at> gmail <dot> com
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License as
   9 // published by the Free Software Foundation; either version 2 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20 //
  21 // $Id$
  22
  23 #include "FGMacOSXEventInput.hxx"
  24
  25
  26 #define GetHIDElementLongValue(element, key) ({ \
  27       long value = 0; \
  28       CFNumberRef refType = (CFNumberRef)CFDictionaryGetValue(element, CFSTR(key)); \
  29       if (refType) { CFNumberGetValue(refType, kCFNumberLongType, &value); } \
  30       value; })
  31
  32 #define GetHIDElementBooleanValue(element, key) ({ \
  33       bool value = 0; \
  34       CFBooleanRef refType = (CFBooleanRef)CFDictionaryGetValue(element, CFSTR(key)); \
  35       if (refType) { value = CFBooleanGetValue(refType); } \
  36       value; })
  37
  38 #define GetHIDElementStringValue(element, key) ({ \
  39       const char *buf = ""; \
  40       CFStringRef refType = (CFStringRef)CFDictionaryGetValue(element, CFSTR(key)); \
  41       if (refType) { \
  42         buf = CFStringGetCStringPtr(refType, CFStringGetSystemEncoding());  \
  43        } \
  44       buf; })
  45
  46 // HID Element Types (log / debug use)
  47 struct HIDTypes HID_TYPE_TABLE[] = {
  48   {kIOHIDElementTypeInput_Misc, kHIDElementType, "Input Misc"},
  49   {kIOHIDElementTypeInput_Button, kHIDElementType, "Input Button"},
  50   {kIOHIDElementTypeInput_Axis, kHIDElementType, "Input Axis"},
  51   {kIOHIDElementTypeInput_ScanCodes, kHIDElementType, "Input ScanCodes"},
  52   {kIOHIDElementTypeOutput, kHIDElementType, "Output"},
  53   {kIOHIDElementTypeFeature, kHIDElementType, "Feature"},
  54   {kIOHIDElementTypeCollection, kHIDElementType, "Collection"},
  55   {-1, kHIDElementType, ""}
  56 };
  57
  58 // HID Element Pages (log / debug use)
  59 struct HIDTypes HID_PAGE_TABLE[] = {
  60   // Page
  61   {kHIDPage_GenericDesktop, kHIDElementPage, "GenericDesktop"},
  62   {kHIDPage_Simulation, kHIDElementPage, "Simulation Controls"},
  63   {kHIDPage_VR, kHIDElementPage, "VR Controls"},
  64   {kHIDPage_Sport, kHIDElementPage, "Sport Controls"},
  65   {kHIDPage_Game, kHIDElementPage, "Game Controls"},
  66   {0x06, kHIDElementPage, "Generic Device Controls"},
  67   {kHIDPage_KeyboardOrKeypad, kHIDElementPage, "KeyboardOrKeypad"},
  68   {kHIDPage_LEDs, kHIDElementPage, "LEDs"},
  69   {kHIDPage_Button, kHIDElementPage, "Button"},
  70   {kHIDPage_Ordinal, kHIDElementPage, "Ordinal"},
  71   {kHIDPage_Telephony, kHIDElementPage, "Telephony"},
  72   {kHIDPage_Consumer, kHIDElementPage, "Consumer"},
  73   {kHIDPage_Digitizer, kHIDElementPage, "Digitizer"},
  74   {kHIDPage_PID, kHIDElementPage, "PID"},
  75   {kHIDPage_VendorDefinedStart, kHIDElementPage, "VendorDefinedStart"},
  76   {-1, kHIDElementPage, ""}
  77 };
  78
  79 #define USAGE_KEY(PAGE,USAGE) (PAGE << 16 | USAGE)
  80 #define GET_PAGE(KEY)  (KEY >> 16)
  81 #define GET_USAGE(KEY) (KEY & 0xFFFF)
  82
  83 #define GD_USAGE(USAGE) USAGE_KEY(kHIDPage_GenericDesktop, USAGE)
  84 #define SIM_USAGE(USAGE) USAGE_KEY(kHIDPage_GenericDesktop, USAGE)
  85 #define VR_USAGE(USAGE) USAGE_KEY(kHIDPage_VR, USAGE)
  86 #define SP_USAGE(USAGE) USAGE_KEY(kHIDPage_Sport, USAGE)
  87 #define GAME_USAGE(USAGE) USAGE_KEY(kHIDPage_Game, USAGE)
  88 #define GDC_USAGE(USAGE) USAGE_KEY(0x06, USAGE) // Generic Device Control is "Reserved" in Apple's definition
  89 #define KEY_USAGE(USAGE) USAGE_KEY(kHIDPage_KeyboardOrKeypad, USAGE)
  90 #define LED_USAGE(USAGE) USAGE_KEY(kHIDPage_LEDs, USAGE)
  91 #define BUTTON_USAGE(USAGE) USAGE_KEY(kHIDPage_Button, USAGE)
  92 #define DIG_USAGE(USAGE) USAGE_KEY(kHIDPage_Digitizer, USAGE)
  93 #define CON_USAGE(USAGE) USAGE_KEY(kHIDPage_Consumer, USAGE)
  94
  95 // HID Element Usage <-> FGEventData convertion data
  96 struct HIDTypes HID_USAGE_TABLE[] = {
  97   // Generic Desktop Page
  98   {GD_USAGE(kHIDUsage_GD_X), kHIDUsageAxis, "x-translate"},
  99   {GD_USAGE(kHIDUsage_GD_Y), kHIDUsageAxis, "y-translate"},
 100   {GD_USAGE(kHIDUsage_GD_Z), kHIDUsageAxis, "z-translate"},
 101   {GD_USAGE(kHIDUsage_GD_Rx), kHIDUsageAxis, "x-rotate"},
 102   {GD_USAGE(kHIDUsage_GD_Ry), kHIDUsageAxis, "y-rotate"},
 103   {GD_USAGE(kHIDUsage_GD_Rz), kHIDUsageAxis, "z-rotate"},
 104   {GD_USAGE(kHIDUsage_GD_Slider), kHIDUsageAxis, "slider"},
 105   {GD_USAGE(kHIDUsage_GD_Dial), kHIDUsageAxis, "dial"},
 106   {GD_USAGE(kHIDUsage_GD_Wheel), kHIDUsageAxis, "wheel"},
 107   {GD_USAGE(kHIDUsage_GD_Hatswitch), kHIDUsageHat, "hat"},
 108
 109   {GD_USAGE(kHIDUsage_GD_CountedBuffer), kHIDUsageNotSupported, "counted-buffer"},
 110   {GD_USAGE(kHIDUsage_GD_ByteCount), kHIDUsageNotSupported, "byte-count"},
 111   {GD_USAGE(kHIDUsage_GD_MotionWakeup), kHIDUsageDF, "motion-wakeup"},
 112   {GD_USAGE(kHIDUsage_GD_Start), kHIDUsageOOC, "button-start"},
 113   {GD_USAGE(kHIDUsage_GD_Select), kHIDUsageOOC, "button-select"},
 114   {GD_USAGE(kHIDUsage_GD_Vx), kHIDUsageAxis, "x-vector"},
 115   {GD_USAGE(kHIDUsage_GD_Vy), kHIDUsageAxis, "y-vector"},
 116   {GD_USAGE(kHIDUsage_GD_Vz), kHIDUsageAxis, "z-vector"},
 117   {GD_USAGE(kHIDUsage_GD_Vbrx), kHIDUsageAxis, "x-rel-vector"},
 118   {GD_USAGE(kHIDUsage_GD_Vbry), kHIDUsageAxis, "y-rel-vector"},
 119   {GD_USAGE(kHIDUsage_GD_Vbrz), kHIDUsageAxis, "z-rel-vector"},
 120   {GD_USAGE(kHIDUsage_GD_Vno),  kHIDUsageAxis, "no-vector"},
 121
 122   {GD_USAGE(kHIDUsage_GD_SystemPowerDown), kHIDUsageOSC, "button-system-power-down"},
 123   {GD_USAGE(kHIDUsage_GD_SystemSleep), kHIDUsageOSC, "button-system-sleep"},
 124   {GD_USAGE(kHIDUsage_GD_SystemWakeUp), kHIDUsageOSC, "button-system-wake-up"},
 125   {GD_USAGE(kHIDUsage_GD_SystemContextMenu), kHIDUsageOSC, "button-system-context-menu"},
 126   {GD_USAGE(kHIDUsage_GD_SystemMainMenu), kHIDUsageOSC, "button-system-main-menu"},
 127   {GD_USAGE(kHIDUsage_GD_SystemAppMenu), kHIDUsageOSC, "button-system-app-menu"},
 128   {GD_USAGE(kHIDUsage_GD_SystemMenuHelp), kHIDUsageOSC, "button-system-menu-help"},
 129   {GD_USAGE(kHIDUsage_GD_SystemMenuExit), kHIDUsageOSC, "button-system-menu-exit"},
 130   {GD_USAGE(kHIDUsage_GD_SystemMenu), kHIDUsageOSC, "button-system-menu"},
 131   {GD_USAGE(kHIDUsage_GD_SystemMenuRight), kHIDUsageRTC, "button-system-menu-right"},
 132   {GD_USAGE(kHIDUsage_GD_SystemMenuLeft), kHIDUsageRTC, "button-system-menu-left"},
 133   {GD_USAGE(kHIDUsage_GD_SystemMenuUp), kHIDUsageRTC, "button-system-menu-up"},
 134   {GD_USAGE(kHIDUsage_GD_SystemMenuDown), kHIDUsageRTC, "button-system-menu-down"},
 135   {GD_USAGE(kHIDUsage_GD_DPadUp), kHIDUsageOOC, "dpad-up"},
 136   {GD_USAGE(kHIDUsage_GD_DPadDown), kHIDUsageOOC, "dpad-down"},
 137   {GD_USAGE(kHIDUsage_GD_DPadRight), kHIDUsageOOC, "dpad-right"},
 138   {GD_USAGE(kHIDUsage_GD_DPadLeft), kHIDUsageOOC, "dpad-left"},
 139
 140   // Game Controls Page
 141   {GAME_USAGE(kHIDUsage_Game_TurnRightOrLeft), kHIDUsageAxis, "turn"},
 142   {GAME_USAGE(kHIDUsage_Game_PitchUpOrDown), kHIDUsageAxis, "pitch"},
 143   {GAME_USAGE(kHIDUsage_Game_MoveRightOrLeft), kHIDUsageAxis, "x-move"},
 144   {GAME_USAGE(kHIDUsage_Game_MoveForwardOrBackward), kHIDUsageAxis, "y-move"},
 145   {GAME_USAGE(kHIDUsage_Game_MoveUpOrDown), kHIDUsageAxis, "z-move"},
 146   {GAME_USAGE(kHIDUsage_Game_LeanRightOrLeft), kHIDUsageAxis, "x-lean"},
 147   {GAME_USAGE(kHIDUsage_Game_LeanForwardOrBackward), kHIDUsageAxis, "z-lean"},
 148
 149   // General Control Devices Page
 150   {GDC_USAGE(0x20), kHIDUsageDV, "battery-strength"},
 151   {GDC_USAGE(0x21), kHIDUsageDV, "wireless-channel"},
 152   {GDC_USAGE(0x22), kHIDUsageDV, "wireless-id"},
 153   {GDC_USAGE(0x23), kHIDUsageDV, "discover-wireless-control"},
 154   {GDC_USAGE(0x24), kHIDUsageOSC, "security-code-character-entered"},
 155   {GDC_USAGE(0x25), kHIDUsageOSC, "security-code-character-erased"},
 156   {GDC_USAGE(0x26), kHIDUsageOSC, "security-code-cleared"},
 157
 158   // Simulation Controls Page
 159   {SIM_USAGE(kHIDUsage_Sim_Aileron), kHIDUsageAxis, "aileron"},
 160   {SIM_USAGE(kHIDUsage_Sim_AileronTrim), kHIDUsageAxis, "aileron-trim"},
 161   {SIM_USAGE(kHIDUsage_Sim_AntiTorqueControl), kHIDUsageAxis, "anti-torque-control"},
 162   {SIM_USAGE(kHIDUsage_Sim_AutopilotEnable), kHIDUsageOOC, "button-autopilot-enable"},
 163   {SIM_USAGE(kHIDUsage_Sim_ChaffRelease), kHIDUsageOSC, "button-chaff-release"},
 164   {SIM_USAGE(kHIDUsage_Sim_CollectiveControl), kHIDUsageAxis, "collective-control"},
 165   {SIM_USAGE(kHIDUsage_Sim_DiveBrake), kHIDUsageAxis, "dive-brake"},
 166   {SIM_USAGE(kHIDUsage_Sim_ElectronicCountermeasures), kHIDUsageOOC, "electronic-countermeasures"}, // OOC
 167   {SIM_USAGE(kHIDUsage_Sim_Elevator), kHIDUsageAxis, "elevator"},
 168   {SIM_USAGE(kHIDUsage_Sim_ElevatorTrim), kHIDUsageAxis, "elevator-trim"},
 169   {SIM_USAGE(kHIDUsage_Sim_Rudder), kHIDUsageAxis, "rudder"},
 170   {SIM_USAGE(kHIDUsage_Sim_Throttle), kHIDUsageAxis, "throttle"},
 171   {SIM_USAGE(kHIDUsage_Sim_FlightCommunications), kHIDUsageOOC, "button-flight-communications"}, // OOC
 172   {SIM_USAGE(kHIDUsage_Sim_FlareRelease), kHIDUsageOSC, "button-flare-release"},
 173   {SIM_USAGE(kHIDUsage_Sim_LandingGear), kHIDUsageOOC, "button-landing-gear"}, // OOC
 174   {SIM_USAGE(kHIDUsage_Sim_ToeBrake), kHIDUsageAxis, "toe-brake"},
 175   {SIM_USAGE(kHIDUsage_Sim_Trigger), kHIDUsageMC, "button-trigger"},
 176   {SIM_USAGE(kHIDUsage_Sim_WeaponsArm), kHIDUsageOOC, "button-weapons-arm"}, // OOC
 177   {SIM_USAGE(kHIDUsage_Sim_Weapons), kHIDUsageOSC, "button-weapons"},
 178   {SIM_USAGE(kHIDUsage_Sim_WingFlaps), kHIDUsageAxis, "wing-flaps"},  // DV
 179   {SIM_USAGE(kHIDUsage_Sim_Accelerator), kHIDUsageAxis, "accelerator"}, // DV
 180   {SIM_USAGE(kHIDUsage_Sim_Brake), kHIDUsageAxis, "brake"}, // DV
 181   {SIM_USAGE(kHIDUsage_Sim_Clutch), kHIDUsageAxis, "clutch"}, // DV
 182   {SIM_USAGE(kHIDUsage_Sim_Shifter), kHIDUsageAxis, "shifter"}, // DV
 183   {SIM_USAGE(kHIDUsage_Sim_Steering), kHIDUsageAxis, "steering"}, // DV
 184   {SIM_USAGE(kHIDUsage_Sim_TurretDirection), kHIDUsageAxis, "turret-direction"}, // DV
 185   {SIM_USAGE(kHIDUsage_Sim_BarrelElevation), kHIDUsageAxis, "barrel-elevation"}, // DV
 186   {SIM_USAGE(kHIDUsage_Sim_DivePlane), kHIDUsageAxis, "dive-plane"}, // DV
 187   {SIM_USAGE(kHIDUsage_Sim_Ballast), kHIDUsageAxis, "ballast"}, // DV
 188   {SIM_USAGE(kHIDUsage_Sim_BicycleCrank), kHIDUsageAxis, "bicycle-crank"}, // DV
 189   {SIM_USAGE(kHIDUsage_Sim_HandleBars), kHIDUsageAxis, "handle-bars"}, // DV
 190   {SIM_USAGE(kHIDUsage_Sim_FrontBrake), kHIDUsageAxis, "front-brake"}, // DV
 191   {SIM_USAGE(kHIDUsage_Sim_RearBrake), kHIDUsageAxis, "rear-brake"}, // DV
 192
 193   // Digitizer Controls Page
 194   {DIG_USAGE(kHIDUsage_Dig_TipPressure), kHIDUsageAxis, "tip-pressure"}, // DV
 195   {DIG_USAGE(kHIDUsage_Dig_BarrelPressure), kHIDUsageAxis, "barrel-pressure"}, // DV
 196   {DIG_USAGE(kHIDUsage_Dig_InRange), kHIDUsageMC, "in-range"}, // MC
 197   {DIG_USAGE(kHIDUsage_Dig_Touch), kHIDUsageMC, "touch"}, // MC
 198   {DIG_USAGE(kHIDUsage_Dig_Untouch), kHIDUsageOSC, "button-untouch"}, // OSC
 199   {DIG_USAGE(kHIDUsage_Dig_Tap), kHIDUsageOSC, "button-tap"}, // OSC
 200   {DIG_USAGE(kHIDUsage_Dig_Quality), kHIDUsageDV, "quality"}, // DV
 201   {DIG_USAGE(kHIDUsage_Dig_DataValid), kHIDUsageDV, "button-data-valid"}, // MC
 202   {DIG_USAGE(kHIDUsage_Dig_TransducerIndex), kHIDUsageDV, "transducer-index"}, // DV
 203   {DIG_USAGE(kHIDUsage_Dig_BatteryStrength), kHIDUsageDV, "battery-strength"}, // DV
 204   {DIG_USAGE(kHIDUsage_Dig_Invert), kHIDUsageMC, "invert"}, // MC
 205   {DIG_USAGE(kHIDUsage_Dig_XTilt), kHIDUsageAxis, "x-tilt"}, // DV
 206   {DIG_USAGE(kHIDUsage_Dig_YTilt), kHIDUsageAxis, "y-tilt"}, // DV
 207   {DIG_USAGE(kHIDUsage_Dig_Azimuth), kHIDUsageAxis, "azimuth"}, // DV
 208   {DIG_USAGE(kHIDUsage_Dig_Altitude), kHIDUsageAxis, "altitude"}, // DV
 209   {DIG_USAGE(kHIDUsage_Dig_Twist), kHIDUsageAxis, "twist"}, // DV
 210   {DIG_USAGE(kHIDUsage_Dig_TipSwitch), kHIDUsageMC, "button-tipswitch"}, // MC
 211   {DIG_USAGE(kHIDUsage_Dig_SecondaryTipSwitch), kHIDUsageMC, "button-secondary-tipswitch"}, // MC
 212   {DIG_USAGE(kHIDUsage_Dig_BarrelSwitch), kHIDUsageMC, "button-barrelswitch"}, // MC
 213   {DIG_USAGE(kHIDUsage_Dig_Eraser), kHIDUsageMC, "eraser"}, // MC
 214   {DIG_USAGE(kHIDUsage_Dig_TabletPick), kHIDUsageMC, "table-pick"}, // MC
 215
 216  // Consumer Page
 217   {CON_USAGE(kHIDUsage_Csmr_Plus10), kHIDUsageOSC, "plus10"},
 218   {CON_USAGE(kHIDUsage_Csmr_Plus100), kHIDUsageOSC, "plus100"},
 219   {CON_USAGE(kHIDUsage_Csmr_AMOrPM), kHIDUsageOSC, "am-pm"},
 220   {CON_USAGE(kHIDUsage_Csmr_Power), kHIDUsageOOC, "power"},
 221   {CON_USAGE(kHIDUsage_Csmr_Reset), kHIDUsageOSC, "reset"},
 222   {CON_USAGE(kHIDUsage_Csmr_Sleep), kHIDUsageOSC, "sleep"},
 223   {CON_USAGE(kHIDUsage_Csmr_SleepAfter), kHIDUsageOSC, "sleep-after"},
 224   {CON_USAGE(kHIDUsage_Csmr_SleepMode), kHIDUsageRTC, "sleep-mode"},
 225   {CON_USAGE(kHIDUsage_Csmr_Illumination), kHIDUsageOOC, "illumination"},
 226   {CON_USAGE(kHIDUsage_Csmr_Menu), kHIDUsageOOC, "menu"},
 227   {CON_USAGE(kHIDUsage_Csmr_MenuPick), kHIDUsageOSC, "menu-pick"},
 228   {CON_USAGE(kHIDUsage_Csmr_MenuUp), kHIDUsageOSC, "menu-up"},
 229   {CON_USAGE(kHIDUsage_Csmr_MenuDown), kHIDUsageOSC, "menu-down"},
 230   {CON_USAGE(kHIDUsage_Csmr_MenuLeft), kHIDUsageOSC, "menu-left"},
 231   {CON_USAGE(kHIDUsage_Csmr_MenuRight), kHIDUsageOSC, "menu-right"},
 232   {CON_USAGE(kHIDUsage_Csmr_MenuEscape), kHIDUsageOSC, "menu-escape"},
 233   {CON_USAGE(kHIDUsage_Csmr_MenuValueIncrease), kHIDUsageOSC, "menu-value-increase"},
 234   {CON_USAGE(kHIDUsage_Csmr_MenuValueDecrease), kHIDUsageOSC, "menu-value-decrease"},
 235   {CON_USAGE(kHIDUsage_Csmr_DataOnScreen), kHIDUsageOOC, "data-on-screen"},
 236   {CON_USAGE(kHIDUsage_Csmr_ClosedCaption), kHIDUsageOOC, "closed-caption"},
 237   {CON_USAGE(kHIDUsage_Csmr_ClosedCaptionSelect), kHIDUsageSel, "closed-caption-select"},
 238   {CON_USAGE(kHIDUsage_Csmr_VCROrTV), kHIDUsageOOC, "vcr-tv"},
 239   {CON_USAGE(kHIDUsage_Csmr_BroadcastMode), kHIDUsageOSC, "broadcast-mode"},
 240   {CON_USAGE(kHIDUsage_Csmr_Snapshot), kHIDUsageOSC, "snapshot"},
 241   {CON_USAGE(kHIDUsage_Csmr_Still), kHIDUsageOSC, "still"},
 242   {CON_USAGE(kHIDUsage_Csmr_Assign), kHIDUsageOSC, "assign"},
 243   {CON_USAGE(kHIDUsage_Csmr_ModeStep), kHIDUsageOSC, "mode-step"},
 244   {CON_USAGE(kHIDUsage_Csmr_RecallLast), kHIDUsageOSC, "recall-last"},
 245   {CON_USAGE(kHIDUsage_Csmr_EnterChannel), kHIDUsageOSC, "enter-channel"},
 246   {CON_USAGE(kHIDUsage_Csmr_OrderMovie), kHIDUsageOSC, "order-movie"},
 247   {CON_USAGE(kHIDUsage_Csmr_Channel), kHIDUsageDV, "channel"}, // LC
 248   {CON_USAGE(kHIDUsage_Csmr_MediaSelection), kHIDUsageSel, "media-selection"},
 249   {CON_USAGE(kHIDUsage_Csmr_MediaSelectComputer), kHIDUsageSel, "media-select-computer"},
 250   {CON_USAGE(kHIDUsage_Csmr_MediaSelectTV), kHIDUsageSel, "media-select-tv"},
 251   {CON_USAGE(kHIDUsage_Csmr_MediaSelectWWW), kHIDUsageSel, "media-seleci-www"},
 252   {CON_USAGE(kHIDUsage_Csmr_MediaSelectDVD), kHIDUsageSel, "media-select-dvd"},
 253   {CON_USAGE(kHIDUsage_Csmr_MediaSelectTelephone), kHIDUsageSel, "media-select-telephone"},
 254   {CON_USAGE(kHIDUsage_Csmr_MediaSelectProgramGuide), kHIDUsageSel, "media-select-programguide"},
 255   {CON_USAGE(kHIDUsage_Csmr_MediaSelectVideoPhone), kHIDUsageSel, "media-select-videophone"},
 256   {CON_USAGE(kHIDUsage_Csmr_MediaSelectGames), kHIDUsageSel, "media-select-games"},
 257   {CON_USAGE(kHIDUsage_Csmr_MediaSelectMessages), kHIDUsageSel, "media-select-messages"},
 258   {CON_USAGE(kHIDUsage_Csmr_MediaSelectCD), kHIDUsageSel, "media-select-cd"},
 259   {CON_USAGE(kHIDUsage_Csmr_MediaSelectVCR), kHIDUsageSel, "media-select-vcr"},
 260   {CON_USAGE(kHIDUsage_Csmr_MediaSelectTuner), kHIDUsageOSC, "media-select-tuner"},
 261   {CON_USAGE(kHIDUsage_Csmr_Quit), kHIDUsageOSC, "quit"},
 262   {CON_USAGE(kHIDUsage_Csmr_Help), kHIDUsageOOC, "help"},
 263   {CON_USAGE(kHIDUsage_Csmr_MediaSelectTape), kHIDUsageSel, "media-select-tape"},
 264   {CON_USAGE(kHIDUsage_Csmr_MediaSelectCable), kHIDUsageSel, "media-select-cable"},
 265   {CON_USAGE(kHIDUsage_Csmr_MediaSelectSatellite), kHIDUsageSel, "media-select-satellite"},
 266   {CON_USAGE(kHIDUsage_Csmr_MediaSelectSecurity), kHIDUsageSel, "media-select-security"},
 267   {CON_USAGE(kHIDUsage_Csmr_MediaSelectHome), kHIDUsageSel, "media-select-home"},
 268   {CON_USAGE(kHIDUsage_Csmr_MediaSelectCall), kHIDUsageSel, "media-select-call"},
 269   {CON_USAGE(kHIDUsage_Csmr_ChannelIncrement), kHIDUsageOSC, "channel-increment"},
 270   {CON_USAGE(kHIDUsage_Csmr_ChannelDecrement), kHIDUsageOSC, "channel-decrement"},
 271   {CON_USAGE(kHIDUsage_Csmr_Media), kHIDUsageSel, "media"},
 272   {CON_USAGE(kHIDUsage_Csmr_VCRPlus), kHIDUsageOSC, "vcr-plus"},
 273   {CON_USAGE(kHIDUsage_Csmr_Once), kHIDUsageOSC, "once"},
 274   {CON_USAGE(kHIDUsage_Csmr_Daily), kHIDUsageOSC, "daily"},
 275   {CON_USAGE(kHIDUsage_Csmr_Weekly), kHIDUsageOSC, "weekly"},
 276   {CON_USAGE(kHIDUsage_Csmr_Monthly), kHIDUsageOSC, "monthly"},
 277   {CON_USAGE(kHIDUsage_Csmr_Play), kHIDUsageOOC, "play"},
 278   {CON_USAGE(kHIDUsage_Csmr_Pause), kHIDUsageOOC, "pause"},
 279   {CON_USAGE(kHIDUsage_Csmr_Record), kHIDUsageOOC, "record"},
 280   {CON_USAGE(kHIDUsage_Csmr_FastForward), kHIDUsageOOC,"fastforward"},
 281   {CON_USAGE(kHIDUsage_Csmr_Rewind), kHIDUsageOOC, "rewind"},
 282   {CON_USAGE(kHIDUsage_Csmr_ScanNextTrack), kHIDUsageOSC, "scan-next-track"},
 283   {CON_USAGE(kHIDUsage_Csmr_ScanPreviousTrack), kHIDUsageOSC, "scan-previous-track"},
 284   {CON_USAGE(kHIDUsage_Csmr_Stop), kHIDUsageOSC, "stop"},
 285   {CON_USAGE(kHIDUsage_Csmr_Eject), kHIDUsageOSC, "eject"},
 286   {CON_USAGE(kHIDUsage_Csmr_RandomPlay), kHIDUsageOOC, "random-play"},
 287   {CON_USAGE(kHIDUsage_Csmr_SelectDisc), kHIDUsageNotSupported, "select-disc"}, //NamedArray
 288
 289   {CON_USAGE(kHIDUsage_Csmr_VolumeIncrement), kHIDUsageRTC, "volume-increment"},
 290   {CON_USAGE(kHIDUsage_Csmr_VolumeDecrement), kHIDUsageRTC, "volume-decrement"},
 291   {CON_USAGE(kHIDUsage_Csmr_PlayOrPause), kHIDUsageOSC, "play-pause"},
 292   {CON_USAGE(kHIDUsage_Csmr_Mute), kHIDUsageOOC, "mute"},
 293   // Too many... and the rest are T.B.D. ;-)
 294   {-1, kHIDElementPage, ""},
 295 };
 296
 297 static HIDTypeByID hidTypeByID(HID_TYPE_TABLE);
 298 static HIDTypeByID hidPageByID(HID_PAGE_TABLE);
 299 static HIDTypeByID hidUsageByID(HID_USAGE_TABLE);
 300
 301
 302 HIDElement::HIDElement(CFDictionaryRef element, long page, long usage) :
 303   page(page), usage(usage), value(0.0), lastValue(0.0) {
 304
 305   cookie = (IOHIDElementCookie)GetHIDElementLongValue(element, kIOHIDElementCookieKey);
 306   name = hidUsageByID.getName(USAGE_KEY(page, usage));
 307 }
 308
 309 float HIDElement::readStatus(IOHIDDeviceInterface **interface)
 310 {
 311   IOHIDEventStruct event;
 312   lastValue = value;
 313   IOReturn ret = (*interface)->getElementValue(interface, cookie, &event);
 314   if (ret == kIOReturnSuccess) {
 315     value = event.value;
 316 //    SG_LOG(SG_INPUT, SG_BULK, "Element: " << name << "; value = " << value);
 317     return (float)event.value;
 318   } else {
 319     SG_LOG(SG_INPUT, SG_ALERT, "Failed reading value for HID Element: " << name);
 320     return 0.0;
 321   }
 322 }
 323
 324 bool HIDElement::isUpdated()
 325 {
 326   return (value != lastValue);
 327 }
 328
 329 void HIDElement::generateEvent(FGMacOSXInputDevice *device, double dt, int modifiers)
 330 {
 331   SG_LOG(SG_INPUT, SG_DEBUG, "Generating Input Event: " << name << "=" << value);
 332   FGMacOSXEventData eventData(name, value, dt, modifiers);
 333   device->HandleEvent(eventData);
 334 }
 335
 336 AxisElement::AxisElement(CFDictionaryRef element, long page, long usage) :
 337   HIDElement(element, page, usage), dead_band(0.00), saturate(1.0)
 338 {
 339   //  long scaledmin, scaledmax;
 340   min = GetHIDElementLongValue(element, kIOHIDElementMinKey);
 341   max = GetHIDElementLongValue(element, kIOHIDElementMaxKey);
 342   isRelative = GetHIDElementBooleanValue(element, kIOHIDElementIsRelativeKey);
 343   isWrapping = GetHIDElementBooleanValue(element, kIOHIDElementIsWrappingKey);
 344   isNonLinear = GetHIDElementBooleanValue(element, kIOHIDElementIsNonLinearKey);
 345   cout << "isRelative=" << isRelative << ", isWrapping=" << isWrapping << ", isNonLinear=" << isNonLinear << endl;
 346
 347   name = ((isRelative == true) ? "rel-" : "abs-") + name;
 348
 349   center = min + (max - min) / 2;
 350   SG_LOG(SG_INPUT, SG_DEBUG, "HID Axis Element; " << name << " min: " << min << " max:" << max << " center: " << center);
 351 }
 352
 353 float AxisElement::readStatus(IOHIDDeviceInterface **interface)
 354 {
 355   lastValue = value;
 356   value = HIDElement::readStatus(interface);
 357   return value;
 358 /*
 359   if (!isRelative) {
 360     value = (value - (float)center) / (float)(max - center);
 361     if (fabs(value) < dead_band)
 362       value = 0.0;
 363   }
 364 */
 365
 366 }
 367
 368
 369 ButtonElement::ButtonElement(CFDictionaryRef element, long page, long usage) :
 370   HIDElement(element, page, usage)
 371 {
 372   if (name == "") {
 373     stringstream ss;
 374     ss << (page == kHIDPage_KeyboardOrKeypad ? "keyboard-" : "button-") << usage;
 375     ss >> name;
 376   }
 377 }
 378
 379 HatElement::HatElement(CFDictionaryRef element, long page, long usage, int id) :
 380   HIDElement(element, page, usage), id(id)
 381 {
 382   min = GetHIDElementLongValue(element, kIOHIDElementMinKey);
 383   max = GetHIDElementLongValue(element, kIOHIDElementMaxKey);
 384   lastValue = 8;
 385 }
 386
 387 void HatElement::generateEvent(FGMacOSXInputDevice *device, double dt, int modifiers)
 388 {
 389   // Hat Value is from 0 to 8, representing:
 390   // 0:N, 1:NE, 2:E, 3:SE, 4:S, 5:SW, 6:W, 7:NW, 8:N
 391   static float xvalues[] = {0, 1, 1,  1,  0, -1, -1, -1, 0};
 392   static float yvalues[] = {1, 1, 0, -1, -1, -1,  0,  1, 0};
 393   stringstream ss;
 394   string eventName;
 395   ss << "abs-hat" << id << "-x";
 396   ss >> eventName;
 397   SG_LOG(SG_INPUT, SG_BULK, "Generating Input Event: " << eventName << "=" << xvalues[(int)value]);
 398   FGMacOSXEventData eventDataX(eventName, xvalues[(int)value], dt, modifiers);
 399   ss << "abs-hat" << id << "-y";
 400   ss >> eventName;
 401   SG_LOG(SG_INPUT, SG_BULK, "Generating Input Event: " << eventName << "=" << yvalues[(int)value]);
 402   FGMacOSXEventData eventDataY(eventName, yvalues[(int)value], dt, modifiers);
 403   device->HandleEvent((FGEventData &)eventDataX);
 404   device->HandleEvent((FGEventData &)eventDataY);
 405 }
 406
 407
 408 LEDElement::LEDElement(CFDictionaryRef element, long page, long usage) :
 409   HIDElement(element, page, usage)
 410 {
 411   stringstream ss;
 412   if (name == "") {
 413     ss << "led-" << usage;
 414     ss >> name;
 415   }
 416 }
 417
 418 void LEDElement::write(IOHIDDeviceInterface **interface, double value) {
 419   IOHIDEventStruct event = (IOHIDEventStruct){kIOHIDElementTypeOutput, cookie, 0, {0}, 0, 0};
 420   event.value = value;
 421   (*interface)->setElementValue(interface, cookie, &event, 0, NULL, NULL, NULL);
 422 }
 423
 424 //
 425 // This is just for testing....
 426 //
 427 FeatureElement::FeatureElement(CFDictionaryRef element, long page, long usage, int count=1) :
 428   HIDElement(element, page, usage)
 429 {
 430   stringstream ss;
 431   if (name == "") {
 432     ss << "feature-" << usage;
 433     if (count > 1)
 434       ss << "-" << count;
 435     ss >> name;
 436   }
 437 }
 438
 439 float FeatureElement::readStatus(IOHIDDeviceInterface **interface) {
 440   IOHIDEventStruct event;
 441   IOReturn ret = (*interface)->queryElementValue(interface, cookie, &event, 0, NULL, NULL, NULL);
 442   if (ret != kIOReturnSuccess) {
 443     ret = (*interface)->getElementValue(interface, cookie, &event);
 444     if (ret != kIOReturnSuccess) {
 445       SG_LOG(SG_INPUT, SG_ALERT, "Can't get element value for feature element: " << getName());
 446       return 0.0;
 447     }
 448   }
 449   cout << getName() << "=" << event.value << endl;
 450   return event.value;
 451 }
 452
 453 //
 454 // HIDElementFactory
 455 //
 456 void HIDElementFactory::create(CFTypeRef element, FGMacOSXInputDevice *inputDevice)
 457 {
 458   assert(CFGetTypeID(element) == CFArrayGetTypeID());
 459   CFRange range = {0, CFArrayGetCount((CFArrayRef)element)};
 460   CFArrayApplyFunction((CFArrayRef) element, range,
 461                        HIDElementFactory::elementEnumerator, (void *)inputDevice);
 462 };
 463
 464
 465 void HIDElementFactory::elementEnumerator( const void *element, void *inputDevice) {
 466   if (CFGetTypeID((CFTypeRef) element) != CFDictionaryGetTypeID()) {
 467     SG_LOG(SG_INPUT, SG_WARN, "Element Enumerator passed non-dictionary value.");
 468   }
 469   HIDElementFactory::parseElement((CFDictionaryRef)element, (FGMacOSXInputDevice *)inputDevice);
 470 };
 471
 472
 473 void HIDElementFactory::parseElement(CFDictionaryRef element, FGMacOSXInputDevice *inputDevice) {
 474   long page = GetHIDElementLongValue(element, kIOHIDElementUsagePageKey);
 475   long usage = GetHIDElementLongValue(element, kIOHIDElementUsageKey);
 476
 477   static int id=0;
 478   static map<FGMacOSXInputDevice *, map<long, unsigned> > elementCount;
 479
 480   long type = GetHIDElementLongValue(element, kIOHIDElementTypeKey);
 481
 482   if (type == kIOHIDElementTypeCollection) {
 483     id = 0;
 484     cout << "Collection: " << hidTypeByID.getName(type) << "(" << type << ")"
 485               <<":" << hidPageByID.getName(page) << "(" << page << ")"
 486               << ":" << hidUsageByID.getName(USAGE_KEY(page, usage)) << "(" << usage << ")" << endl;
 487     HIDElementFactory::create(CFDictionaryGetValue(element, CFSTR(kIOHIDElementKey)), inputDevice);
 488   } else {
 489     HIDUsageType usageType = hidUsageByID.getType(USAGE_KEY(page, usage));
 490     // FIXME: Any other elegant way for counting the same usage on a device?
 491     // This is mainly needed for feature / hat elements to avoid assigning the sane event name.
 492     elementCount[inputDevice][USAGE_KEY(page, usage)] += 1;
 493
 494     switch (usageType) {
 495       case kHIDUsageAxis:
 496           inputDevice->addElement(new AxisElement(element, page, usage));
 497           break;
 498       case kHIDUsageDV:
 499       case kHIDUsageDF:
 500           inputDevice->addElement(new HIDElement(element, page, usage));
 501           break;
 502       case kHIDUsageHat:
 503           inputDevice->addElement(new HatElement(element, page, usage, elementCount[inputDevice][USAGE_KEY(page, usage)]));
 504           break;
 505       case kHIDUsageOOC:
 506       case kHIDUsageOSC:
 507       case kHIDUsageMC:
 508       case kHIDUsageRTC:
 509           if (usage > 0)
 510             inputDevice->addElement(new ButtonElement(element, page, usage));
 511           break;
 512
 513       default:
 514         if (page == kHIDPage_Button || type == kIOHIDElementTypeInput_Button && usage > 0) {
 515         // FIXME: most of KeyboardOrKeypad elements should be treated as Selector type, not as Button...
 516           inputDevice->addElement(new ButtonElement(element, page, usage));
 517         } else if (page == kHIDPage_LEDs && usage > 0) {
 518           inputDevice->addElement(new LEDElement(element, page, usage));
 519 /*
 520         } else if (type == kIOHIDElementTypeFeature) {
 521           // just for testing feature elements
 522           inputDevice->addElement(new FeatureElement(element, page, usage, elementCount[inputDevice][USAGE_KEY(page, usage)]));
 523 */
 524         } else {
 525           cout << "HID Element Page/Usage is not supported: type=" << hidTypeByID.getName(type) << "(" << type << ")"
 526                     << ", page=" << hidPageByID.getName(page) << "(" << page << ")" << ", usage=" << usage << endl;
 527         }
 528     }
 529   }
 530 }
 531
 532 //
 533 // FGMacOSXInputDevice implementation
 534 //
 535
 536 FGMacOSXInputDevice::FGMacOSXInputDevice(io_object_t device) : device(device), devInterface(NULL)
 537 {
 538   CFDictionaryRef properties = getProperties();
 539   string deviceName = GetHIDElementStringValue(properties, kIOHIDProductKey);
 540   if (deviceName == "") {
 541     deviceName = GetHIDElementStringValue(properties, "USB Product Name");
 542   }
 543
 544   SetName(deviceName);
 545   CFRelease(properties);
 546 }
 547
 548 const char *FGMacOSXInputDevice::TranslateEventName(FGEventData &eventData)
 549 {
 550   FGMacOSXEventData &macEvent = (FGMacOSXEventData &)eventData;
 551   return macEvent.name.c_str();
 552 }
 553
 554
 555 void FGMacOSXInputDevice::Send(const char *eventName, double value)
 556 {
 557   HIDElement *element = elements[eventName];
 558   if (element) {
 559     element->write(devInterface, value);
 560   } else {
 561     cout << "No element to handle event: " << eventName << endl;
 562   }
 563 }
 564
 565
 566 CFDictionaryRef FGMacOSXInputDevice::getProperties(io_object_t device)
 567 {
 568   IOReturn ret;
 569   CFMutableDictionaryRef properties;
 570
 571   ret = IORegistryEntryCreateCFProperties( device, &properties, kCFAllocatorDefault, kNilOptions);
 572   if (ret != kIOReturnSuccess || !properties) {
 573     SG_LOG(SG_INPUT, SG_WARN, "Error getting device properties.");
 574     return NULL;
 575   }
 576
 577   return properties;
 578 }
 579
 580
 581 void FGMacOSXInputDevice::addElement(HIDElement *element)
 582 {
 583   elements[element->getName()] = element;
 584   int count = elements.size();
 585   SG_LOG(SG_INPUT, SG_DEBUG, "adding element " << count << ":" << element->getName());
 586 }
 587
 588 void FGMacOSXInputDevice::Open() {
 589   // create device interface
 590   IOReturn ret;
 591   SInt32 score;
 592   IOCFPlugInInterface **plugin;
 593   SG_LOG(SG_INPUT, SG_INFO, "Opening HID : " << GetName());
 594
 595   ret = IOCreatePlugInInterfaceForService(device,
 596                                           kIOHIDDeviceUserClientTypeID,
 597                                           kIOCFPlugInInterfaceID,
 598                                           &plugin, &score);
 599
 600   if (ret != kIOReturnSuccess) {
 601     SG_LOG(SG_INPUT, SG_ALERT, "Error creating a plugin for HID : " << GetName());
 602     throw exception();
 603     return;
 604   }
 605
 606   HRESULT result = (*plugin)->QueryInterface(plugin,
 607                                              CFUUIDGetUUIDBytes(kIOHIDDeviceInterfaceID),
 608                                              (LPVOID*)&devInterface );
 609
 610   if (result != S_OK)
 611     SG_LOG(SG_INPUT, SG_ALERT, "Failed Querying HID plugin interface: " << GetName());
 612
 613   (*plugin)->Release(plugin); // don't leak a ref
 614   if (devInterface == NULL) {
 615     return;
 616     throw exception();
 617   }
 618
 619   // store the interface in this instance
 620   ret = (*devInterface)->open(devInterface, 0);
 621   if (ret != kIOReturnSuccess) {
 622     SG_LOG(SG_INPUT, SG_ALERT, "Error opening device interface: " << GetName());
 623     throw exception();
 624     return;
 625   }
 626   CFDictionaryRef props = getProperties();
 627
 628   // recursively enumerate all the bits (buttons, axes, hats, ...)
 629   CFTypeRef topLevelElement =
 630     CFDictionaryGetValue (props, CFSTR(kIOHIDElementKey));
 631   HIDElementFactory::create(topLevelElement, this);
 632   CFRelease(props);
 633 }
 634
 635 void FGMacOSXInputDevice::Close() {
 636   SG_LOG(SG_INPUT, SG_INFO, "Closing HID: " << GetName());
 637   if (devInterface) {
 638     (*devInterface)->close(devInterface);
 639   }
 640
 641   map<string, HIDElement *>::iterator it;
 642   for (it = elements.begin(); it != elements.end(); it++) {
 643     if ((*it).second)
 644       delete (*it).second;
 645   }
 646   elements.clear();
 647 }
 648
 649 void FGMacOSXInputDevice::update(double dt)
 650 {
 651   map<string, HIDElement *>::iterator it;
 652   for (it = elements.begin(); it != elements.end(); it++) {
 653     (*it).second->readStatus(devInterface);
 654     if ((*it).second->isUpdated()) {
 655       int modifiers = fgGetKeyModifiers();
 656       (*it).second->generateEvent(this, dt, modifiers);
 657     }
 658   }
 659 }
 660
 661 //
 662 // FGMacOSXEventInput implementation
 663 //
 664 FGMacOSXEventInput *FGMacOSXEventInput::_instance=NULL;
 665 FGMacOSXEventInput &FGMacOSXEventInput::instance()
 666 {
 667   if (!FGMacOSXEventInput::_instance) {
 668     SG_LOG(SG_INPUT, SG_ALERT, "FGMacOSXEventInput is not created but its instance is referred.");
 669   }
 670   return *FGMacOSXEventInput::_instance;
 671 }
 672
 673 FGMacOSXEventInput::~FGMacOSXEventInput() {
 674   /*
 675   // inputDevice will be deleted in FGEventInput
 676   map<io_object_t, FGMacOSXInputDevice *>::iterator deviceIterator;
 677   for (deviceIterator = inputDevices.begin(); deviceIterator != inputDevices.end(); deviceIterator++) {
 678   FGMacOSXInputDevice *inputDevice = (*deviceIterator).second;
 679   //    inputDevice->Close();
 680   //    delete inputDevice;
 681   }
 682   */
 683   deviceIndices.clear();
 684 }
 685
 686 void FGMacOSXEventInput::init()
 687 {
 688   IOReturn ret;
 689   SG_LOG(SG_INPUT, SG_INFO, "initializing FGMacOSXEventInput");
 690
 691   // We want all HID devices for matching
 692   CFMutableDictionaryRef matchingDictionary = IOServiceMatching(kIOHIDDeviceKey);
 693
 694   // Needs to retain machingDict since IOServiceAddMatchingNotification consumes one reference.
 695   matchingDictionary = (CFMutableDictionaryRef) CFRetain(matchingDictionary);
 696   matchingDictionary = (CFMutableDictionaryRef) CFRetain(matchingDictionary);
 697
 698   notifyPort = IONotificationPortCreate(kIOMasterPortDefault);
 699   runLoopSource = IONotificationPortGetRunLoopSource(notifyPort);
 700   CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopDefaultMode);
 701   ret = IOServiceAddMatchingNotification(notifyPort, kIOFirstMatchNotification,
 702                                          matchingDictionary, FGMacOSXEventInput::deviceAttached, this, &addedIterator);
 703   ret = IOServiceAddMatchingNotification(notifyPort, kIOTerminatedNotification,
 704                                          matchingDictionary, FGMacOSXEventInput::deviceDetached, this, &removedIterator);
 705
 706   // prepare for notification by calling these callback funcs to remove existing HID device iterators
 707   FGMacOSXEventInput::deviceAttached(NULL, addedIterator);
 708   FGMacOSXEventInput::deviceDetached(NULL, removedIterator);
 709 }
 710
 711
 712 void FGMacOSXEventInput::attachDevice(io_iterator_t iterator)
 713 {
 714   io_object_t device;
 715
 716   while ((device = IOIteratorNext(iterator))) {
 717     FGMacOSXInputDevice *inputDevice = new FGMacOSXInputDevice(device);
 718     if (inputDevice) {
 719       SG_LOG(SG_INPUT, SG_INFO, "HID Device Atached: " << inputDevice->GetName());
 720       unsigned index = AddDevice(inputDevice);
 721       // Needs to check if AddDevice closed the device due to lack to config file
 722       if (index != FGEventInput::INVALID_DEVICE_INDEX) {
 723         deviceIndices[device] = index;
 724       }
 725     }
 726     IOObjectRelease(device);
 727   }
 728 }
 729
 730
 731 void FGMacOSXEventInput::detachDevice(io_iterator_t iterator)
 732 {
 733   io_object_t device;
 734
 735   while ((device = IOIteratorNext(iterator))) {
 736     unsigned index = deviceIndices[device];
 737     if (index != FGEventInput::INVALID_DEVICE_INDEX) {
 738       FGMacOSXInputDevice *inputDevice = (FGMacOSXInputDevice *)input_devices[index];
 739       SG_LOG(SG_INPUT, SG_INFO, "HID Device Detached: " << inputDevice->GetName());
 740       RemoveDevice(index);
 741       deviceIndices.erase(device);
 742     } else {
 743       SG_LOG(SG_INPUT, SG_INFO, "Device ID unmatched: " << (int)device << " No HID deivce is detached since it is not supported by FG.");
 744     }
 745     IOObjectRelease(device);
 746   }
 747 }
 748
 749 void FGMacOSXEventInput::update(double dt)
 750 {
 751   FGEventInput::update(dt);
 752
 753   map<int, FGInputDevice*>::const_iterator it;
 754   for (it = input_devices.begin(); it != input_devices.end(); it++) {
 755     if ((*it).second) {
 756       FGMacOSXInputDevice *inputDevice = (FGMacOSXInputDevice *)((*it).second);
 757       inputDevice->update(dt);
 758     }
 759   }
 760 }