source: rtems/cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h @ cf811a4

5
Last change on this file since cf811a4 was cf811a4, checked in by Amaan Cheval <amaan.cheval@…>, on 07/09/18 at 11:12:57

x86_64/console: Add NS16550 polled console driver

This addition allows us to successfully run the sample hello.exe test.

Updates #2898.
  • Property mode set to 100644
File size: 926 bytes
Line 
1/**
2 * @file
3 *
4 * @brief CPU Port Implementation API
5 */
6
7/*
8 * Copyright (c) 2018.
9 * Amaan Cheval <amaan.cheval@gmail.com>
10 *
11 * Copyright (c) 2013, 2016 embedded brains GmbH
12 *
13 * The license and distribution terms for this file may be
14 * found in the file LICENSE in this distribution or at
15 * http://www.rtems.org/license/LICENSE.
16 */
17
18#ifndef _RTEMS_SCORE_CPUIMPL_H
19#define _RTEMS_SCORE_CPUIMPL_H
20
21#include <rtems/score/cpu.h>
22
23#define CPU_PER_CPU_CONTROL_SIZE 0
24
25#ifndef ASM
26
27#ifdef __cplusplus
28extern "C" {
29#endif
30
31static inline uint8_t inport_byte(uint16_t port)
32{
33  uint8_t ret;
34  __asm__ volatile ( "inb %1, %0"
35                     : "=a" (ret)
36                     : "Nd" (port) );
37  return ret;
38}
39
40static inline void outport_byte(uint16_t port, uint8_t val)
41{
42  __asm__ volatile ( "outb %0, %1" : : "a" (val), "Nd" (port) );
43}
44
45#ifdef __cplusplus
46}
47#endif
48
49#endif /* ASM */
50
51#endif /* _RTEMS_SCORE_CPUIMPL_H */
Note: See TracBrowser for help on using the repository browser.