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annotate src/joystick/darwin/SDL_sysjoystick_c.h @ 2632:9e7f58b1b255 gsoc2008_force_feedback

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Exposed the darwin joystick hardware data to the haptic subsystem.
author Edgar Simo <bobbens@gmail.com>
date Wed, 06 Aug 2008 11:08:29 +0000
parents
children 2f826c229d77
rev   line source
2632
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef SDL_JOYSTICK_IOKIT_H
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25
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26
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27 #if MAC_OS_X_VERSION_MIN_REQUIRED == 1030
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28 #include "10.3.9-FIX/IOHIDLib.h"
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29 #else
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30 #include <IOKit/hid/IOHIDLib.h>
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31 #endif
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32 #include <IOKit/hid/IOHIDKeys.h>
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33
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34
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35 struct recElement
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36 {
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37 IOHIDElementCookie cookie; /* unique value which identifies element, will NOT change */
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38 long min; /* reported min value possible */
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39 long max; /* reported max value possible */
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40 #if 0
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41 /* TODO: maybe should handle the following stuff somehow? */
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42
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43 long scaledMin; /* reported scaled min value possible */
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44 long scaledMax; /* reported scaled max value possible */
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45 long size; /* size in bits of data return from element */
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46 Boolean relative; /* are reports relative to last report (deltas) */
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47 Boolean wrapping; /* does element wrap around (one value higher than max is min) */
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48 Boolean nonLinear; /* are the values reported non-linear relative to element movement */
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49 Boolean preferredState; /* does element have a preferred state (such as a button) */
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50 Boolean nullState; /* does element have null state */
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51 #endif /* 0 */
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52
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53 /* runtime variables used for auto-calibration */
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54 long minReport; /* min returned value */
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55 long maxReport; /* max returned value */
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56
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57 struct recElement *pNext; /* next element in list */
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58 };
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59 typedef struct recElement recElement;
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60
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61 struct joystick_hwdata
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62 {
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63 IOHIDDeviceInterface **interface; /* interface to device, NULL = no interface */
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64
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65 char product[256]; /* name of product */
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66 long usage; /* usage page from IOUSBHID Parser.h which defines general usage */
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67 long usagePage; /* usage within above page from IOUSBHID Parser.h which defines specific usage */
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68
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69 long axes; /* number of axis (calculated, not reported by device) */
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70 long buttons; /* number of buttons (calculated, not reported by device) */
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71 long hats; /* number of hat switches (calculated, not reported by device) */
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72 long elements; /* number of total elements (shouldbe total of above) (calculated, not reported by device) */
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73
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74 recElement *firstAxis;
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75 recElement *firstButton;
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76 recElement *firstHat;
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77
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78 int removed;
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79 int uncentered;
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80
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81 struct joystick_hwdata *pNext; /* next device */
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82 };
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83 typedef struct joystick_hwdata recDevice;
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84
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85
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86 #endif /* SDL_JOYSTICK_IOKIT_H */
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87