RTEMS: cpukit/score/cpu/sh/include/rtems/score/sh_io.h Source File

| RTEMS 5.4-rc2

Loading...
Searching...
No Matches
sh_io.h
Go to the documentation of this file.
1
10/*
11 * Inspired from the linux kernel's include/asm/io.h
12 *
13 * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and
14 * Bernd Becker (becker@faw.uni-ulm.de)
15 *
16 * COPYRIGHT (c) 1996-1998, FAW Ulm, Germany
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21 *
22 *
23 * COPYRIGHT (c) 1998-2001.
24 * On-Line Applications Research Corporation (OAR).
25 *
26 * The license and distribution terms for this file may be
27 * found in the file LICENSE in this distribution or at
28 * http://www.rtems.org/license/LICENSE.
29 */
30
31#ifndef _RTEMS_SCORE_SH_IO_H
32#define _RTEMS_SCORE_SH_IO_H
33
34#define readb(addr) (*(volatile unsigned char *) (addr))
35#define readw(addr) (*(volatile unsigned short *) (addr))
36#define readl(addr) (*(volatile unsigned int *) (addr))
37#define read8(addr) (*(volatile uint8_t *) (addr))
38#define read16(addr) (*(volatile uint16_t *) (addr))
39#define read32(addr) (*(volatile uint32_t *) (addr))
40
41#define writeb(b,addr) ((*(volatile unsigned char *) (addr)) = (b))
42#define writew(b,addr) ((*(volatile unsigned short *) (addr)) = (b))
43#define writel(b,addr) ((*(volatile unsigned int *) (addr)) = (b))
44#define write8(b,addr) ((*(volatile uint8_t *) (addr)) = (b))
45#define write16(b,addr) ((*(volatile uint16_t *) (addr)) = (b))
46#define write32(b,addr) ((*(volatile uint32_t *) (addr)) = (b))
47
48#define inb(addr) readb(addr)
49#define outb(b,addr) writeb(b,addr)
50
51#endif