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byte swapping 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1413 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Greg Watson 2004-03-13 03:48:44 +00:00
parent 96ce0b4bd1
commit 1f50e94d88
1 changed files with 24 additions and 12 deletions
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36
src/arch/ppc/include/arch/io.h
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@ -36,12 +36,8 @@
* are arrays of bytes, and byte-swapping is not appropriate in
* that case. - paulus
*/
#define insb(port, buf, ns) _insb((uint8_t *)((port)+_IO_BASE), (buf), (ns))
#define outsb(port, buf, ns) _outsb((uint8_t *)((port)+_IO_BASE), (buf), (ns))
#define insw(port, buf, ns) _insw_ns((uint16_t *)((port)+_IO_BASE), (buf), (ns))
#define outsw(port, buf, ns) _outsw_ns((uint16_t *)((port)+_IO_BASE), (buf), (ns))
#define insl(port, buf, nl) _insl_ns((uint32_t *)((port)+_IO_BASE), (buf), (nl))
#define outsl(port, buf, nl) _outsl_ns((uint32_t *)((port)+_IO_BASE), (buf), (nl))
#define inb(port) in_8((uint8_t *)((port)+_IO_BASE))
#define outb(val, port) out_8((uint8_t *)((port)+_IO_BASE), (val))
@ -58,14 +54,10 @@
#define outl_p(val, port) outl((val), (port))
/*
* The *_ns versions below don't do byte-swapping.
* Neither do the standard versions now, these are just here
* for older code.
* The *_ns versions below do byte-swapping.
*/
#define insw_ns(port, buf, ns) _insw_ns((uint16_t *)((port)+_IO_BASE), (buf), (ns))
#define outsw_ns(port, buf, ns) _outsw_ns((uint16_t *)((port)+_IO_BASE), (buf), (ns))
#define insl_ns(port, buf, nl) _insl_ns((uint32_t *)((port)+_IO_BASE), (buf), (nl))
#define outsl_ns(port, buf, nl) _outsl_ns((uint32_t *)((port)+_IO_BASE), (buf), (nl))
#define insw_ns(port, buf, ns) _insw((uint16_t *)((port)+_IO_BASE), (buf), (ns))
#define outsw_ns(port, buf, ns) _outsw((uint16_t *)((port)+_IO_BASE), (buf), (ns))
#define IO_SPACE_LIMIT ~0
@ -168,7 +160,7 @@ static inline void _insw_ns(volatile uint16_t *port, void *buf, int ns)
uint16_t * b = (uint16_t *)buf;
while (ns > 0) {
*b++ = readw(port);
*b++ = in_le16(port);
ns--;
}
}
@ -182,4 +174,24 @@ static inline void _outsw_ns(volatile uint16_t *port, const void *buf, int ns)
ns--;
}
}
static inline void _insw(volatile uint16_t *port, void *buf, int ns)
{
uint16_t * b = (uint16_t *)buf;
while (ns > 0) {
*b++ = in_be16(port);
ns--;
}
}
static inline void _outsw(volatile uint16_t *port, const void *buf, int ns)
{
uint16_t * b = (uint16_t *)buf;
while (ns > 0) {
out_be16(port, *b++);
ns--;
}
}
#endif