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Implement inx() and outx() functions for accessing I/O ports.

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This commit is contained in:
dfr 2001-09-15 12:30:56 +00:00
parent 2047d2151b
commit 983e3898da
1 changed files with 38 additions and 6 deletions
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44
sys/ia64/include/cpufunc.h
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@ -32,6 +32,7 @@
#ifdef _KERNEL
#include <sys/types.h>
#include <machine/ia64_cpu.h>
#ifdef __GNUC__
@ -43,22 +44,44 @@ breakpoint(void)
#endif
extern u_int64_t ia64_port_base;
static __inline volatile void *
ia64_port_address(u_int port)
{
return (volatile void *)(ia64_port_base
| ((port >> 2) << 12)
| (port & ((1 << 12) - 1)));
}
static __inline u_int8_t
inb(u_int port)
{
return 0; /* TODO: implement this */
volatile u_int8_t *p = ia64_port_address(port);
u_int8_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline u_int16_t
inw(u_int port)
{
return 0; /* TODO: implement this */
volatile u_int16_t *p = ia64_port_address(port);
u_int16_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline u_int32_t
inl(u_int port)
{
return 0; /* TODO: implement this */
volatile u_int32_t *p = ia64_port_address(port);
u_int32_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline void
@ -88,19 +111,28 @@ insl(u_int port, void *addr, size_t count)
static __inline void
outb(u_int port, u_int8_t data)
{
return; /* TODO: implement this */
volatile u_int8_t *p = ia64_port_address(port);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outw(u_int port, u_int16_t data)
{
return; /* TODO: implement this */
volatile u_int16_t *p = ia64_port_address(port);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outl(u_int port, u_int32_t data)
{
return; /* TODO: implement this */
volatile u_int32_t *p = ia64_port_address(port);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void