devmap.h revision 1.1.2.2
1 1.1.2.2 nathanw /* $NetBSD: devmap.h,v 1.1.2.2 2002/02/28 04:11:42 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /* 4 1.1.2.2 nathanw * Copyright 1997 5 1.1.2.2 nathanw * Digital Equipment Corporation. All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * This software is furnished under license and may be used and 8 1.1.2.2 nathanw * copied only in accordance with the following terms and conditions. 9 1.1.2.2 nathanw * Subject to these conditions, you may download, copy, install, 10 1.1.2.2 nathanw * use, modify and distribute this software in source and/or binary 11 1.1.2.2 nathanw * form. No title or ownership is transferred hereby. 12 1.1.2.2 nathanw * 13 1.1.2.2 nathanw * 1) Any source code used, modified or distributed must reproduce 14 1.1.2.2 nathanw * and retain this copyright notice and list of conditions as 15 1.1.2.2 nathanw * they appear in the source file. 16 1.1.2.2 nathanw * 17 1.1.2.2 nathanw * 2) No right is granted to use any trade name, trademark, or logo of 18 1.1.2.2 nathanw * Digital Equipment Corporation. Neither the "Digital Equipment 19 1.1.2.2 nathanw * Corporation" name nor any trademark or logo of Digital Equipment 20 1.1.2.2 nathanw * Corporation may be used to endorse or promote products derived 21 1.1.2.2 nathanw * from this software without the prior written permission of 22 1.1.2.2 nathanw * Digital Equipment Corporation. 23 1.1.2.2 nathanw * 24 1.1.2.2 nathanw * 3) This software is provided "AS-IS" and any express or implied 25 1.1.2.2 nathanw * warranties, including but not limited to, any implied warranties 26 1.1.2.2 nathanw * of merchantability, fitness for a particular purpose, or 27 1.1.2.2 nathanw * non-infringement are disclaimed. In no event shall DIGITAL be 28 1.1.2.2 nathanw * liable for any damages whatsoever, and in particular, DIGITAL 29 1.1.2.2 nathanw * shall not be liable for special, indirect, consequential, or 30 1.1.2.2 nathanw * incidental damages or damages for lost profits, loss of 31 1.1.2.2 nathanw * revenue or loss of use, whether such damages arise in contract, 32 1.1.2.2 nathanw * negligence, tort, under statute, in equity, at law or otherwise, 33 1.1.2.2 nathanw * even if advised of the possibility of such damage. 34 1.1.2.2 nathanw */ 35 1.1.2.2 nathanw 36 1.1.2.2 nathanw /* 37 1.1.2.2 nathanw ** devmap.h -- device memory mapping definitions 38 1.1.2.2 nathanw ** 39 1.1.2.2 nathanw ** <-----------------map size-------------------------> 40 1.1.2.2 nathanw ** <--internal offset--><--internal size--> 41 1.1.2.2 nathanw ** |--------------------|------------------|----------| 42 1.1.2.2 nathanw ** v v v v 43 1.1.2.2 nathanw ** page device device page 44 1.1.2.2 nathanw ** start memory memory end 45 1.1.2.2 nathanw ** (map offset) start end 46 1.1.2.2 nathanw */ 47 1.1.2.2 nathanw 48 1.1.2.2 nathanw #ifndef _DEVMAP_H_ 49 1.1.2.2 nathanw #define _DEVMAP_H_ 50 1.1.2.2 nathanw 51 1.1.2.2 nathanw #include <sys/types.h> 52 1.1.2.2 nathanw 53 1.1.2.2 nathanw #define MAP_INFO_UNKNOWN -1 54 1.1.2.2 nathanw #define MAP_IOCTL 0 55 1.1.2.2 nathanw #define MAP_MMAP 1 56 1.1.2.2 nathanw #define MAP_I386_IOMAP 3 57 1.1.2.2 nathanw 58 1.1.2.2 nathanw struct map_info { 59 1.1.2.2 nathanw int method; /* Mapping method - eg. IOCTL, MMAP, or I386_IOMAP */ 60 1.1.2.2 nathanw u_long size; /* size of region, in bus-space units */ 61 1.1.2.2 nathanw union { 62 1.1.2.2 nathanw long maxmapinfo[64/sizeof(long)]; 63 1.1.2.2 nathanw struct { 64 1.1.2.2 nathanw int placeholder; /* nothing needed */ 65 1.1.2.2 nathanw } map_info_ioctl; /* used for ioctl method */ 66 1.1.2.2 nathanw struct { 67 1.1.2.2 nathanw off_t map_offset; /* offset to be given to mmap, page aligned */ 68 1.1.2.2 nathanw size_t map_size; /* size to be given to mmap, page aligned */ 69 1.1.2.2 nathanw off_t internal_offset; /* internal offset in mapped rgn to data */ 70 1.1.2.2 nathanw size_t internal_size; /* actual size of accessible region */ 71 1.1.2.2 nathanw } map_info_mmap; /* used for mmap'd methods */ 72 1.1.2.2 nathanw struct { 73 1.1.2.2 nathanw u_long start_port; 74 1.1.2.2 nathanw } map_info_i386_iomap; 75 1.1.2.2 nathanw } u; 76 1.1.2.2 nathanw }; 77 1.1.2.2 nathanw 78 1.1.2.2 nathanw #endif /* _DEVMAP_H_ */ 79
Indexes created Fri Oct 03 02:09:57 GMT 2025