mirror of
https://gitlab.com/qemu-project/openbios.git
synced 2024-02-13 08:34:06 +08:00
04a412a7f5
files from include/$ARCH to include/arch/$ARCH. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk> git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@687 f158a5a8-5612-0410-a976-696ce0be7e32
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
#ifndef _ASM_IO_H
|
|
#define _ASM_IO_H
|
|
|
|
extern unsigned long virt_offset;
|
|
|
|
#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
|
|
#define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
|
|
|
|
#define __SLOW_DOWN_IO "outb %%al,$0x80;"
|
|
static inline void slow_down_io(void)
|
|
{
|
|
__asm__ __volatile__(
|
|
__SLOW_DOWN_IO
|
|
#ifdef REALLY_SLOW_IO
|
|
__SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO
|
|
#endif
|
|
: : );
|
|
}
|
|
|
|
#define BUILDIO(bwl,bw,type) \
|
|
static inline void out##bwl(unsigned type value, int port) { \
|
|
__asm__ __volatile__("out" #bwl " %" #bw "0, %w1" : : "a"(value), "Nd"(port)); \
|
|
} \
|
|
static inline unsigned type in##bwl(int port) { \
|
|
unsigned type value; \
|
|
__asm__ __volatile__("in" #bwl " %w1, %" #bw "0" : "=a"(value) : "Nd"(port)); \
|
|
return value; \
|
|
} \
|
|
static inline void out##bwl##_p(unsigned type value, int port) { \
|
|
out##bwl(value, port); \
|
|
slow_down_io(); \
|
|
} \
|
|
static inline unsigned type in##bwl##_p(int port) { \
|
|
unsigned type value = in##bwl(port); \
|
|
slow_down_io(); \
|
|
return value; \
|
|
} \
|
|
static inline void outs##bwl(int port, const void *addr, unsigned long count) { \
|
|
__asm__ __volatile__("rep; outs" #bwl : "+S"(addr), "+c"(count) : "d"(port)); \
|
|
} \
|
|
static inline void ins##bwl(int port, void *addr, unsigned long count) { \
|
|
__asm__ __volatile__("rep; ins" #bwl : "+D"(addr), "+c"(count) : "d"(port)); \
|
|
}
|
|
|
|
#ifndef BOOTSTRAP
|
|
BUILDIO(b,b,char)
|
|
BUILDIO(w,w,short)
|
|
BUILDIO(l,,int)
|
|
#else
|
|
extern u8 inb( u32 reg );
|
|
extern u16 inw( u32 reg );
|
|
extern u32 inl( u32 reg );
|
|
extern void insw( u32 reg, void *addr, unsigned long count );
|
|
extern void outb( u32 reg, u8 val );
|
|
extern void outw( u32 reg, u16 val );
|
|
extern void outl( u32 reg, u32 val );
|
|
extern void outsw( u32 reg, const void *addr, unsigned long count);
|
|
#endif
|
|
#endif
|