diff options
Diffstat (limited to 'c/src/exec/score/cpu/sh/rtems/score/sh_io.h')
-rw-r--r-- | c/src/exec/score/cpu/sh/rtems/score/sh_io.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/c/src/exec/score/cpu/sh/rtems/score/sh_io.h b/c/src/exec/score/cpu/sh/rtems/score/sh_io.h new file mode 100644 index 0000000000..2a9111e307 --- /dev/null +++ b/c/src/exec/score/cpu/sh/rtems/score/sh_io.h @@ -0,0 +1,48 @@ +/* + * These are some macros to access memory mapped devices + * on the SH7000-architecture. + * + * Inspired from the linux kernel's include/asm/io.h + * + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1996-1998, FAW Ulm, Germany + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * + * COPYRIGHT (c) 1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#ifndef _asm_io_h +#define _asm_io_h + +#define readb(addr) (*(volatile unsigned char *) (addr)) +#define readw(addr) (*(volatile unsigned short *) (addr)) +#define readl(addr) (*(volatile unsigned int *) (addr)) +#define read8(addr) (*(volatile unsigned8 *) (addr)) +#define read16(addr) (*(volatile unsigned16 *) (addr)) +#define read32(addr) (*(volatile unsigned32 *) (addr)) + +#define writeb(b,addr) ((*(volatile unsigned char *) (addr)) = (b)) +#define writew(b,addr) ((*(volatile unsigned short *) (addr)) = (b)) +#define writel(b,addr) ((*(volatile unsigned int *) (addr)) = (b)) +#define write8(b,addr) ((*(volatile unsigned8 *) (addr)) = (b)) +#define write16(b,addr) ((*(volatile unsigned16 *) (addr)) = (b)) +#define write32(b,addr) ((*(volatile unsigned32 *) (addr)) = (b)) + +#define inb(addr) readb(addr) +#define outb(b,addr) writeb(b,addr) + +#endif |