mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-20 18:54:09 +08:00
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 */
|