ae49e80795
The dma.h, hw_irq.h, serial.h and timex.h files originally described PC-style i8237, i8259A, i8250, i8253 and i8255 chips as well as the VGA style text mode graphics. Modern architectures live happily without these specific interfaces, but a few definitions from these headers keep getting used in common code. The new generic headers are what most architectures use anyway nowadays, just implementing the minimal definitions. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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 */
|