source: rtems/cpukit/score/cpu/sh/rtems/score/sh_io.h @ 4f5740f

4.115
Last change on this file since 4f5740f was 4f5740f, checked in by Alex Ivanov <alexivanov97@…>, on 01/08/13 at 19:36:13

score: Doxygen Clean Up Task #16

  • Property mode set to 100644
File size: 1.7 KB
Line 
1/**
2 * @file
3 *
4 * @brief Macros to Access Memory Mapped Devices on the SH7000-Architecture
5 *
6 * These are some macros to access memory mapped devices
7 * on the SH7000-architecture.
8 */
9
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.com/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
Note: See TracBrowser for help on using the repository browser.