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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * Access to VGA videoram |
| 4 | * |
| 5 | * (c) 1998 Martin Mares <mj@ucw.cz> |
| 6 | */ |
| 7 | #ifndef __ASM_GENERIC_VGA_H |
| 8 | #define __ASM_GENERIC_VGA_H |
| 9 | |
| 10 | /* |
| 11 | * On most architectures that support VGA, we can just |
| 12 | * recalculate addresses and then access the videoram |
| 13 | * directly without any black magic. |
| 14 | * |
| 15 | * Everyone else needs to ioremap the address and use |
| 16 | * proper I/O accesses. |
| 17 | */ |
| 18 | #ifndef VGA_MAP_MEM |
| 19 | #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x) |
| 20 | #endif |
| 21 | |
| 22 | #define vga_readb(x) (*(x)) |
| 23 | #define vga_writeb(x, y) (*(y) = (x)) |
| 24 | |
| 25 | #endif /* _ASM_GENERIC_VGA_H */ |
| 26 |
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