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/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved.
*
* IOFrameBufferDisplay.h - Standard frame buffer display driver class.
*
*
* HISTORY
* 01 Sep 92 Joe Pasqua
* Created.
*/
/* Notes:
* This module defines an abstract superclass for "standard" (linear)
* framebuffers.
*/
#ifndef __IOFRAMEBUFFERDISPLAY_H__
#define __IOFRAMEBUFFERDISPLAY_H__
#import <driverkit/IODisplay.h>
@interface IOFrameBufferDisplay:IODisplay
{
@private
void *priv;
/* Mapping tables used in cursor drawing to 5-5-5 displays. */
unsigned char *_bm34To35SampleTable;
unsigned char *_bm35To34SampleTable;
/* Reserved for future expansion. */
int _IOFrameBufferDisplay_reserved[8];
}
/* Put the display into linear framebuffer mode. This typically happens
* when the window server starts running. This method is implemented by
* subclasses in a device specific way.
*/
- (void)enterLinearMode;
/* Get the device out of whatever advanced linear mode it was using and back
* into a state where it can be used as a standard VGA device. This method
* is implemented by subclasses in a device specific way.
*/
- (void)revertToVGAMode;
/* Look up the physical memory location for this device instance and map
* it into VM for use by the device driver. If problems occur, the method
* returns (vm_address_t)0. If `addr' is not 0, then it is used as the
* physical memory address and `length' is used as the length.
*/
- (vm_address_t)mapFrameBufferAtPhysicalAddress:(unsigned int)addr
length:(int)length;
/* Choose a mode from the list `modeList' (containing `count' modes) based
* on the value of the `DisplayMode' key in the device's config table. If
* `isValid' is nonzero, each element specifies whether or not the
* corresponding mode is valid.
*/
- (int)selectMode:(const IODisplayInfo *)modeList count:(int)count
valid:(const BOOL *)isValid;
/* Equivalent to the above with `isValid' set to zero.
*/
- (int)selectMode:(const IODisplayInfo *)modeList count:(int)count;
/* IODevice methods reimplemented by this class. */
+ (BOOL)probe:deviceDescription;
- initFromDeviceDescription:deviceDescription;
- (IOReturn)getIntValues : (unsigned *)parameterArray
forParameter : (IOParameterName)parameterName
count : (unsigned *)count; /* in/out*/
- (IOReturn)setIntValues : (unsigned *)parameterArray
forParameter : (IOParameterName)parameterName
count : (unsigned)count;
- (IOReturn)setCharValues : (unsigned char *)parameterArray
forParameter : (IOParameterName)parameterName
count : (unsigned)count;
- setTransferTable:(const unsigned int *)table count:(int)count;
/* 'IOScreenEvents' protocol methods reimplemented by this class. */
- hideCursor: (int)token;
- moveCursor:(Point*)cursorLoc frame:(int)frame token:(int)t;
- showCursor:(Point*)cursorLoc frame:(int)frame token:(int)t;
/* NOTE: Subclasses must override setBrightness and implement appropriately. */
- setBrightness:(int)level token:(int)t;
@end
#endif /* __IOFRAMEBUFFERDISPLAY_H__ */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.