25 lines
		
	
	
	
		
			548 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			25 lines
		
	
	
	
		
			548 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
|   | /*
 | ||
|  |  *	Access to VGA videoram | ||
|  |  * | ||
|  |  *	(c) 1998 Martin Mares <mj@ucw.cz> | ||
|  |  */ | ||
|  | #ifndef __ASM_GENERIC_VGA_H
 | ||
|  | #define __ASM_GENERIC_VGA_H
 | ||
|  | 
 | ||
|  | /*
 | ||
|  |  *	On most architectures that support VGA, we can just | ||
|  |  *	recalculate addresses and then access the videoram | ||
|  |  *	directly without any black magic. | ||
|  |  * | ||
|  |  *	Everyone else needs to ioremap the address and use | ||
|  |  *	proper I/O accesses. | ||
|  |  */ | ||
|  | #ifndef VGA_MAP_MEM
 | ||
|  | #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #define vga_readb(x) (*(x))
 | ||
|  | #define vga_writeb(x, y) (*(y) = (x))
 | ||
|  | 
 | ||
|  | #endif /* _ASM_GENERIC_VGA_H */
 |