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Revision: linuxbios@linuxbios.org--devel/freebios--devel--2.0--patch-3

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Creator:  Eric Biederman <ebiederman@lnxi.com>

Add read[bwl] write[bwl] to arch/io.h for i386

A pending patch requires needs this and ppc already has them
so it is a good idea to implement them :)

I don't know why this was not implemented earlier.


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1922 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
arch import user (historical)
2005-07-06 16:48:02 +00:00
parent 3f8eb7a072
commit 4966de81c3
1 changed files with 30 additions and 0 deletions
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30
src/arch/i386/include/arch/io.h
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@@ -138,5 +138,35 @@ static inline void insl(uint16_t port, void *addr, unsigned long count)
); );
} }
static inline void writeb(uint8_t b, volatile void *addr)
{
*(volatile uint8_t *) addr = b;
}
static inline void writew(uint16_t b, volatile void *addr)
{
*(volatile uint16_t *) addr = b;
}
static inline void writel(uint32_t b, volatile void *addr)
{
*(volatile uint32_t *) addr = b;
}
static inline uint8_t readb(const volatile void *addr)
{
return *(volatile uint8_t *) addr;
}
static inline uint16_t readw(const volatile void *addr)
{
return *(volatile uint16_t *) addr;
}
static inline uint32_t readl(const volatile void *addr)
{
return *(volatile uint32_t *) addr;
}
#endif #endif