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Annotation of kernel/bsd/dev/ppc/PCPointer.m, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /*     Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. 
                     26:  *
                     27:  * PCPointer.m - Generic PCPointer device class.
                     28:  * 
                     29:  *
                     30:  * HISTORY
                     31:  * 01-Dec-92   Joe Pasqua at NeXT
                     32:  *      Created. 
                     33:  */
                     34:  
                     35: // TO DO:
                     36: //
                     37: // Notes:
                     38: // * To find things that need to be fixed, search for FIX, to find questions
                     39: //   to be resolved, search for ASK, to find stuff that still needs to be
                     40: //   done, search for TO DO.
                     41: //
                     42: 
                     43: #define MACH_USER_API  1
                     44: #undef KERNEL_PRIVATE
                     45: 
                     46: #import        <objc/Object.h>
                     47: #import <driverkit/driverServer.h>
                     48: #import <driverkit/generalFuncs.h>
                     49: #import <bsd/dev/ppc/PCPointer.h>
                     50: #import <bsd/dev/ppc/PCPointerDefs.h>
                     51: 
                     52: static id activePointerDevice;
                     53: 
                     54: @implementation PCPointer
                     55: 
                     56: - (int)getResolution
                     57: {
                     58:     // Subclasses must implement this method for proper operation
                     59:     return 50; // This is a standard sort of value.
                     60: }
                     61: 
                     62: - (BOOL)setEventTarget:eventTarget
                     63: {
                     64:     if ( [eventTarget conformsTo:@protocol(ADBPointerTarget)] )
                     65:     {
                     66:        target = eventTarget;
                     67:        return TRUE;
                     68:     }
                     69:     else
                     70:     {
                     71:        IOLog( "PCPointer setEventTarget: new target [%s] does not "
                     72:            "implement PCPointerTarget protocol.\n",
                     73:            object_getClassName(eventTarget) );
                     74:        return FALSE;
                     75:     }
                     76: }
                     77: 
                     78: PCPatoi(char *p)
                     79: {
                     80:        int n = 0;
                     81:        int f = 0;
                     82: 
                     83:        for(;;p++) {
                     84:                switch(*p) {
                     85:                case ' ':
                     86:                case '\t':
                     87:                        continue;
                     88:                case '-':
                     89:                        f++;
                     90:                case '+':
                     91:                        p++;
                     92:                }
                     93:                break;
                     94:        }
                     95:        while(*p >= '0' && *p <= '9')
                     96:                n = n*10 + *p++ - '0';
                     97:        return(f? -n: n);
                     98: }
                     99: 
                    100: - (BOOL)mouseInit:deviceDescription
                    101: {
                    102:     return NO;
                    103: }
                    104: 
                    105: + (id) activePointerDevice
                    106: {
                    107:     return activePointerDevice;
                    108: }
                    109: 
                    110: + (BOOL)probe:deviceDescription
                    111: {
                    112:     PCPointer *inst;
                    113:     char nameBuf[20];
                    114:     static IOObjectNumber nextUnit;    // Initial value is 0
                    115: 
                    116:     inst = [[self alloc] initFromDeviceDescription:deviceDescription];
                    117:     inst->target = nil;        // No one is the target of mouse events yet
                    118: 
                    119:     // Initialize the specific rodent in question.
                    120:     if ([inst mouseInit:deviceDescription] == NO) {
                    121:        IOLog("PCPointer probe: mouseInit failure\n");
                    122:        [inst free];
                    123:        return NO;
                    124:     }
                    125:     else {
                    126:        sprintf(nameBuf, "PPCPointer%d", nextUnit);
                    127:        [inst setUnit:nextUnit++];
                    128:        [inst setName:nameBuf];
                    129:        // [self setDeviceKind:"SpecificType"]; was done by the subclass
                    130:        [inst registerDevice];
                    131:        activePointerDevice = inst;
                    132:     }
                    133:     
                    134:     return YES;
                    135: }
                    136: @end

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