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Annotation of XNU/iokit/Families/IOGraphics/IODisplayWrangler.h, revision 1.1.1.1

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: /*
                     23:  * Copyright (c) 1999 Apple Computer, Inc.
                     24:  *
                     25:  *
                     26:  * HISTORY
                     27:  *
                     28:  */
                     29: 
                     30: #ifndef _IOKIT_IODISPLAYWRANGLER_H
                     31: #define _IOKIT_IODISPLAYWRANGLER_H
                     32: 
                     33: #include <IOKit/IOService.h>
                     34: #include <IOKit/graphics/IOFramebuffer.h>
                     35: #include <IOKit/graphics/IODisplay.h>
                     36: 
                     37: class IOWorkLoop;
                     38: class IOCommandQueue;
                     39: 
                     40: class IODisplayWrangler : public IOService
                     41: {
                     42:     OSDeclareDefaultStructors( IODisplayWrangler );
                     43: 
                     44: private:
                     45:     bool               fOpen;
                     46:     IOLock *           fMatchingLock;
                     47:     OSSet *            fFramebuffers;
                     48:     OSSet *            fDisplays;
                     49:     // true: we have informed displays to assume lowest usable state
                     50:     bool               emergency_informed;
                     51:     // from control panel: number of idle minutes before dimming
                     52:     unsigned long      mins_to_dim;
                     53:     // false: use mins_to_dim unless in emergency situation
                     54:     bool               use_general_aggressiveness;
                     55: 
                     56:     virtual void initForPM ( void );
                     57:     virtual IOReturn setAggressiveness ( unsigned long, unsigned long );
                     58:     virtual bool activityTickle ( unsigned long, unsigned long );
                     59:     virtual unsigned long  maxCapabilityForDomainState ( IOPMPowerFlags );
                     60:     virtual unsigned long  powerStateForDomainState ( IOPMPowerFlags );
                     61:     virtual unsigned long  initialPowerStateForDomainState ( IOPMPowerFlags );
                     62:     virtual IOReturn setPowerState ( unsigned long powerStateOrdinal, IOService* whatDevice );
                     63:     virtual void makeDisplaysUsable ( void );
                     64:     virtual void idleDisplays ( void );
                     65:       
                     66:     static bool _displayHandler( void * target, void * ref,
                     67:                             IOService * newService );
                     68:     static bool _displayConnectHandler( void * target, void * ref,
                     69:                             IOService * newService );
                     70: 
                     71:     virtual bool displayHandler( OSSet * set, IODisplay * newDisplay);
                     72:     virtual bool displayConnectHandler( void * ref, IODisplayConnect * connect);
                     73: 
                     74:     virtual bool makeDisplayConnects( IOFramebuffer * fb );
                     75: 
                     76:     virtual IODisplayConnect * getDisplayConnect(
                     77:                IOFramebuffer * fb, IOIndex connect );
                     78: 
                     79:     virtual IOReturn getConnectFlagsForDisplayMode(
                     80:                IODisplayConnect * connect,
                     81:                IODisplayModeID mode, UInt32 * flags );
                     82: 
                     83:     virtual IOReturn getDefaultMode( IOFramebuffer * fb,
                     84:                         IODisplayModeID * mode, IOIndex * depth );
                     85: 
                     86:     virtual IOReturn findStartupMode( IOFramebuffer * fb );
                     87: 
                     88: public:
                     89: 
                     90:     virtual bool start(IOService * provider);
                     91: 
                     92:     static IOReturn clientStart( IOFramebuffer * fb );
                     93: 
                     94:     static IOReturn getFlagsForDisplayMode(
                     95:                IOFramebuffer * fb,
                     96:                IODisplayModeID mode, UInt32 * flags );
                     97:     
                     98: };
                     99: 
                    100: #endif /* _IOKIT_IODISPLAYWRANGLER_H */

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