1 | // SPDX-License-Identifier: GPL-3.0-or-later |
2 | |
3 | #pragma once |
4 | |
5 | #include <mos/mos_global.h> |
6 | #include <mos/types.h> |
7 | |
8 | typedef u16 x86_port_t; |
9 | |
10 | should_inline u8 port_inb(u16 port) |
11 | { |
12 | u8 value; |
13 | __asm__ volatile("inb %1, %0" : "=a" (value) : "dN" (port)); |
14 | return value; |
15 | } |
16 | |
17 | should_inline u16 port_inw(x86_port_t port) |
18 | { |
19 | u16 value; |
20 | __asm__ volatile("inw %1, %0" : "=a" (value) : "dN" (port)); |
21 | return value; |
22 | } |
23 | |
24 | should_inline u32 port_inl(x86_port_t port) |
25 | { |
26 | u32 value; |
27 | __asm__ volatile("inl %1, %0" : "=a" (value) : "dN" (port)); |
28 | return value; |
29 | } |
30 | |
31 | should_inline void port_outb(u16 port, u8 value) |
32 | { |
33 | __asm__ volatile("outb %1, %0" : : "dN" (port), "a" (value)); |
34 | } |
35 | |
36 | should_inline void port_outw(x86_port_t port, u16 value) |
37 | { |
38 | __asm__ volatile("outw %1, %0" : : "dN" (port), "a" (value)); |
39 | } |
40 | |
41 | should_inline void port_outl(x86_port_t port, u32 value) |
42 | { |
43 | __asm__ volatile("outl %1, %0" : : "dN" (port), "a" (value)); |
44 | } |
45 | |