Annotation of XNU/iokit/IOKit/hidsystem/ev_keymap.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*     Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. 
        !            23:  *
        !            24:  *     ev_keymap.h
        !            25:  *     Defines the structure used for parsing keymappings.  These structures
        !            26:  *     and definitions are used by event sources in the kernel and by
        !            27:  *     applications and utilities which manipulate keymaps.
        !            28:  *     
        !            29:  * HISTORY
        !            30:  * 02-Jun-1992    Mike Paquette at NeXT
        !            31:  *      Created. 
        !            32:  */
        !            33: 
        !            34: #ifndef _DEV_EV_KEYMAP_H
        !            35: #define _DEV_EV_KEYMAP_H
        !            36: 
        !            37: #define        NX_NUMKEYCODES  128     /* Highest key code is 0x7f */
        !            38: #define NX_NUMSEQUENCES        128     /* Maximum possible number of sequences */
        !            39: #define        NX_NUMMODIFIERS 16      /* Maximum number of modifier bits */
        !            40: #define        NX_BYTE_CODES   0       /* If first short 0, all are bytes (else shorts) */
        !            41: 
        !            42: #define        NX_WHICHMODMASK 0x0f    /* bits out of keyBits for bucky bits */
        !            43: #define        NX_MODMASK      0x10    /* Bit out of keyBits indicates modifier bit */
        !            44: #define        NX_CHARGENMASK  0x20    /* bit out of keyBits for char gen */
        !            45: #define        NX_SPECIALKEYMASK 0x40  /* bit out of keyBits for specialty key */
        !            46: #define        NX_KEYSTATEMASK 0x80    /* OBSOLETE - DO NOT USE IN NEW DESIGNS */
        !            47: 
        !            48: /*
        !            49:  * Special keys currently known to and understood by the system.
        !            50:  * If new specialty keys are invented, extend this list as appropriate.
        !            51:  * The presence of these keys in a particular implementation is not
        !            52:  * guaranteed.
        !            53:  */
        !            54: #define NX_NOSPECIALKEY                        0xFFFF
        !            55: #define NX_KEYTYPE_SOUND_UP            0       /* Processed by kernel */
        !            56: #define NX_KEYTYPE_SOUND_DOWN          1       /* Processed by kernel */
        !            57: #define NX_KEYTYPE_BRIGHTNESS_UP       2       /* Processed by kernel */
        !            58: #define NX_KEYTYPE_BRIGHTNESS_DOWN     3       /* Processed by kernel */
        !            59: #define NX_KEYTYPE_CAPS_LOCK           4       /* Processed by kernel */
        !            60: #define NX_KEYTYPE_HELP                        5
        !            61: #define NX_POWER_KEY                   6
        !            62: #define        NX_KEYTYPE_MUTE                 7       /* Processed by kernel */
        !            63: #define NX_UP_ARROW_KEY                        8       /* Processed by kernel */
        !            64: #define NX_DOWN_ARROW_KEY              9
        !            65: #define        NX_NUMSPECIALKEYS               10 /* Maximum number of special keys */
        !            66: #define NX_NUM_SCANNED_SPECIALKEYS     8 /* First 8 special keys are */
        !            67:                                          /* actively scanned in kernel */
        !            68: 
        !            69: /* Modifier key indices into modDefs[] */
        !            70: #define NX_MODIFIERKEY_ALPHALOCK       0
        !            71: #define NX_MODIFIERKEY_SHIFT           1
        !            72: #define NX_MODIFIERKEY_CONTROL         2
        !            73: #define NX_MODIFIERKEY_ALTERNATE       3
        !            74: #define NX_MODIFIERKEY_COMMAND         4
        !            75: #define NX_MODIFIERKEY_NUMERICPAD      5
        !            76: #define NX_MODIFIERKEY_HELP            6
        !            77: 
        !            78: typedef struct _NXParsedKeyMapping_ {
        !            79:        /* If nonzero, all numbers are shorts; if zero, all numbers are bytes*/
        !            80:        short   shorts;
        !            81:        
        !            82:        /*
        !            83:         *  For each keycode, low order bit says if the key
        !            84:         *  generates characters.
        !            85:         *  High order bit says if the key is assigned to a modifier bit.
        !            86:         *  The second to low order bit gives the current state of the key.
        !            87:         */
        !            88:        char    keyBits[NX_NUMKEYCODES];
        !            89:        
        !            90:        /* Bit number of highest numbered modifier bit */
        !            91:        int                     maxMod;
        !            92:        
        !            93:        /* Pointers to where the list of keys for each modifiers bit begins,
        !            94:         * or NULL.
        !            95:         */
        !            96:        unsigned char *modDefs[NX_NUMMODIFIERS];
        !            97:        
        !            98:        /* Key code of highest key deinfed to generate characters */
        !            99:        int                     numDefs;
        !           100:        
        !           101:        /* Pointer into the keyMapping where this key's definitions begin */
        !           102:        unsigned char *keyDefs[NX_NUMKEYCODES];
        !           103:        
        !           104:        /* number of sequence definitions */
        !           105:        int                     numSeqs;
        !           106:        
        !           107:        /* pointers to sequences */
        !           108:        unsigned char *seqDefs[NX_NUMSEQUENCES];
        !           109:        
        !           110:        /* Special key definitions */
        !           111:        int                     numSpecialKeys;
        !           112:        
        !           113:        /* Special key values, or 0xFFFF if none */
        !           114:        unsigned short specialKeys[NX_NUMSPECIALKEYS];
        !           115:        
        !           116:        /* Pointer to the original keymapping string */ 
        !           117:        const unsigned char *mapping;
        !           118:        
        !           119:        /* Length of the original string */
        !           120:        int     mappingLen;     
        !           121: } NXParsedKeyMapping;
        !           122: 
        !           123: #endif /* !_DEV_EV_KEYMAP_H */

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