_bus.h revision 145253
1/*- 2 * Copyright (c) 2005 M. Warner Losh. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions, and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/pc98/include/_bus.h 145253 2005-04-18 21:45:34Z imp $ 29 */ 30 31#ifndef PC98_INCLUDE__BUS_H 32#define PC98_INCLUDE__BUS_H 33 34/* 35 * Bus address and size types 36 */ 37typedef u_int bus_addr_t; 38typedef u_int bus_size_t; 39 40/* 41 * Access methods for bus resources and address space. 42 */ 43struct bus_space_tag { 44#define BUS_SPACE_IO 0 45#define BUS_SPACE_MEM 1 46 u_int bs_tag; /* bus space flags */ 47 48 struct bus_space_access_methods bs_da; /* direct access */ 49 struct bus_space_access_methods bs_ra; /* relocate access */ 50#if 0 51 struct bus_space_access_methods bs_ida; /* indexed direct access */ 52#endif 53}; 54typedef struct bus_space_tag *bus_space_tag_t; 55 56/* 57 * bus space handle 58 */ 59struct bus_space_handle { 60 bus_addr_t bsh_base; 61 size_t bsh_sz; 62 63 bus_addr_t bsh_iat[BUS_SPACE_IAT_MAXSIZE]; 64 size_t bsh_maxiatsz; 65 size_t bsh_iatsz; 66 67 struct resource **bsh_res; 68 size_t bsh_ressz; 69 70 struct bus_space_access_methods bsh_bam; 71}; 72typedef struct bus_space_handle *bus_space_handle_t; 73 74#endif /* PC98_INCLUDE__BUS_H */ 75