| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | ** ----------------------------------------------------------------------------- |
| 3 | ** |
| 4 | ** Perle Specialix driver for Linux |
| 5 | ** Ported from existing RIO Driver for SCO sources. |
| 6 | * |
| 7 | * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | ** |
| 23 | ** Module : riscos.h |
| 24 | ** SID : 1.2 |
| 25 | ** Last Modified : 11/6/98 11:34:19 |
| 26 | ** Retrieved : 11/6/98 11:34:22 |
| 27 | ** |
| 28 | ** ident @(#)riscos.h 1.2 |
| 29 | ** |
| 30 | ** ----------------------------------------------------------------------------- |
| 31 | */ |
| 32 | |
| 33 | #ifndef __rio_riscos_h__ |
| 34 | #define __rio_riscos_h__ |
| 35 | |
| 36 | #ifdef SCCS_LABELS |
| 37 | static char *_riscos_h_sccs_ = "@(#)riscos.h 1.2"; |
| 38 | #endif |
| 39 | |
| 40 | /* |
| 41 | ** This module used to define all those little itsy bits required for RISC/OS |
| 42 | ** now it's full of null macros. |
| 43 | */ |
| 44 | |
| 45 | /* |
| 46 | ** RBYTE reads a byte from a location. |
| 47 | ** RWORD reads a word from a location. |
| 48 | ** WBYTE writes a byte to a location. |
| 49 | ** WWORD writes a word to a location. |
| 50 | ** RINDW reads a word through a pointer. |
| 51 | ** WINDW writes a word through a pointer. |
| 52 | ** RIOSWAB swaps the two bytes of a word, if needed. |
| 53 | */ |
| 54 | |
| 55 | #define RIOSWAB(N) (N) |
| 56 | #define WBYTE(A,V) (A)=(uchar)(V) |
| 57 | #define WWORD(A,V) (A)=(ushort)(V) |
| 58 | #define RBYTE(A) (uchar)(A) |
| 59 | #define RWORD(A) (ushort)(A) |
| 60 | #define RINDW(A) (*(ushort *)(A)) |
| 61 | #define WINDW(A,V) (*(ushort *)(A)=(ushort)(V)) |
| 62 | |
| 63 | #endif /* __rio_riscos_h__ */ |