| /* |
| * Access to VGA videoram |
| * |
| * (c) 1998 Martin Mares <mj@ucw.cz> |
| */ |
| |
| #ifndef _LINUX_ASM_VGA_H_ |
| #define _LINUX_ASM_VGA_H_ |
| |
| #include <asm/io.h> |
| |
| #define VT_BUF_HAVE_RW |
| #define VT_BUF_HAVE_MEMSETW |
| #define VT_BUF_HAVE_MEMCPYW |
| |
| extern inline void scr_writew(u16 val, volatile u16 *addr) |
| { |
| if (__is_ioaddr(addr)) |
| __raw_writew(val, (volatile u16 __iomem *) addr); |
| else |
| *addr = val; |
| } |
| |
| extern inline u16 scr_readw(volatile const u16 *addr) |
| { |
| if (__is_ioaddr(addr)) |
| return __raw_readw((volatile const u16 __iomem *) addr); |
| else |
| return *addr; |
| } |
| |
| extern inline void scr_memsetw(u16 *s, u16 c, unsigned int count) |
| { |
| if (__is_ioaddr(s)) |
| memsetw_io((u16 __iomem *) s, c, count); |
| else |
| memsetw(s, c, count); |
| } |
| |
| /* Do not trust that the usage will be correct; analyze the arguments. */ |
| extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count); |
| |
| /* ??? These are currently only used for downloading character sets. As |
| such, they don't need memory barriers. Is this all they are intended |
| to be used for? */ |
| #define vga_readb(a) readb((u8 __iomem *)(a)) |
| #define vga_writeb(v,a) writeb(v, (u8 __iomem *)(a)) |
| |
| #define VGA_MAP_MEM(x) ((unsigned long) ioremap(x, 0)) |
| |
| #endif |