Linux Kernel  3.7.1
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vga.h
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1 /*
2  * Access to VGA videoram
3  *
4  * (c) 1998 Martin Mares <[email protected]>
5  */
6 #ifndef __ASM_GENERIC_VGA_H
7 #define __ASM_GENERIC_VGA_H
8 
9 /*
10  * On most architectures that support VGA, we can just
11  * recalculate addresses and then access the videoram
12  * directly without any black magic.
13  *
14  * Everyone else needs to ioremap the address and use
15  * proper I/O accesses.
16  */
17 #ifndef VGA_MAP_MEM
18 #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
19 #endif
20 
21 #define vga_readb(x) (*(x))
22 #define vga_writeb(x, y) (*(y) = (x))
23 
24 #endif /* _ASM_GENERIC_VGA_H */