2
* Copyright (c) 2006 Ondrej Palkovsky
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
9
* - Redistributions of source code must retain the above copyright
10
* notice, this list of conditions and the following disclaimer.
11
* - Redistributions in binary form must reproduce the above copyright
12
* notice, this list of conditions and the following disclaimer in the
13
* documentation and/or other materials provided with the distribution.
14
* - The name of the author may not be used to endorse or promote products
15
* derived from this software without specific prior written permission.
17
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
* @ingroup libcia32, libcamd64
33
#ifndef LIBC_ia32_DDI_H_
34
#define LIBC_ia32_DDI_H_
36
#include <sys/types.h>
37
#include <libarch/types.h>
39
#define IO_SPACE_BOUNDARY ((void *) (64 * 1024))
41
static inline uint8_t pio_read_8(ioport8_t *port)
46
"inb %w[port], %b[val]\n"
54
static inline uint16_t pio_read_16(ioport16_t *port)
59
"inw %w[port], %w[val]\n"
67
static inline uint32_t pio_read_32(ioport32_t *port)
72
"inl %w[port], %[val]\n"
80
static inline void pio_write_8(ioport8_t *port, uint8_t val)
83
"outb %b[val], %w[port]\n"
84
:: [val] "a" (val), [port] "d" (port)
88
static inline void pio_write_16(ioport16_t *port, uint16_t val)
91
"outw %w[val], %w[port]\n"
92
:: [val] "a" (val), [port] "d" (port)
96
static inline void pio_write_32(ioport32_t *port, uint32_t val)
99
"outl %[val], %w[port]\n"
100
:: [val] "a" (val), [port] "d" (port)