1 /* $OpenBSD: isa_machdep.h,v 1.15 1999/01/13 07:26:00 niklas Exp $ */ 2 /* $NetBSD: isa_machdep.h,v 1.7 1997/06/06 23:28:42 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /*- 42 * Copyright (c) 1990 The Regents of the University of California. 43 * All rights reserved. 44 * 45 * This code is derived from software contributed to Berkeley by 46 * William Jolitz. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * @(#)isa.h 5.7 (Berkeley) 5/9/91 77 */ 78 79 /* 80 * Various pieces of the i386 port want to include this file without 81 * or in spite of using isavar.h, and should be fixed. 82 */ 83 84 #ifndef _I386_ISA_MACHDEP_H_ /* XXX */ 85 #define _I386_ISA_MACHDEP_H_ /* XXX */ 86 87 #include <machine/bus.h> 88 89 /* 90 * XXX THIS FILE IS A MESS. copyright: berkeley's probably. 91 * contents from isavar.h and isareg.h, mostly the latter. 92 * perhaps charles's? 93 * 94 * copyright from berkeley's isa.h which is now dev/isa/isareg.h. 95 */ 96 97 /* 98 * Types provided to machine-independent ISA code. 99 */ 100 typedef void *isa_chipset_tag_t; 101 102 struct device; /* XXX */ 103 struct isabus_attach_args; /* XXX */ 104 105 /* 106 * Functions provided to machine-independent ISA code. 107 */ 108 void isa_attach_hook __P((struct device *, struct device *, 109 struct isabus_attach_args *)); 110 int isa_intr_alloc __P((isa_chipset_tag_t, int, int, int *)); 111 int isa_intr_check __P((isa_chipset_tag_t, int, int)); 112 void *isa_intr_establish __P((isa_chipset_tag_t ic, int irq, int type, 113 int level, int (*ih_fun)(void *), void *ih_arg, char *ih_what)); 114 void isa_intr_disestablish __P((isa_chipset_tag_t ic, void *handler)); 115 116 /* 117 * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED 118 * BY PORTABLE CODE. 119 */ 120 121 extern struct i386_bus_dma_tag isa_bus_dma_tag; 122 123 /* 124 * Cookie used by ISA dma. A pointer to one of these it stashed in 125 * the DMA map. 126 */ 127 struct i386_isa_dma_cookie { 128 int id_flags; /* flags; see below */ 129 130 void *id_origbuf; /* pointer to orig buffer if 131 bouncing */ 132 bus_size_t id_origbuflen; /* ...and size */ 133 134 void *id_bouncebuf; /* pointer to the bounce buffer */ 135 bus_size_t id_bouncebuflen; /* ...and size */ 136 int id_nbouncesegs; /* number of valid bounce segs */ 137 bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer 138 physical memory segments */ 139 }; 140 141 /* id_flags */ 142 #define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */ 143 #define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */ 144 #define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */ 145 146 /* 147 * XXX Various seemingly PC-specific constants, some of which may be 148 * unnecessary anyway. 149 */ 150 151 /* 152 * RAM Physical Address Space (ignoring the above mentioned "hole") 153 */ 154 #define RAM_BEGIN 0x0000000 /* Start of RAM Memory */ 155 #define RAM_END 0x1000000 /* End of RAM Memory */ 156 #define RAM_SIZE (RAM_END - RAM_BEGIN) 157 158 /* 159 * Oddball Physical Memory Addresses 160 */ 161 #define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */ 162 #define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */ 163 #define WEITEK_FPU 0xC0000000 /* WTL 2167 */ 164 #define CYRIX_EMC 0xC0000000 /* Cyrix EMC */ 165 166 /* 167 * stuff that used to be in pccons.c 168 */ 169 #define MONO_BUF 0xB0000 170 #define CGA_BUF 0xB8000 171 #define IOPHYSMEM 0xA0000 172 173 174 /* 175 * ISA DMA bounce buffers. 176 * XXX should be made partially machine- and bus-mapping-independent. 177 * 178 * DMA_BOUNCE is the number of pages of low-addressed physical memory 179 * to acquire for ISA bounce buffers. If physical memory below 16 MB 180 * then DMA_BOUNCE_LOW will be used. 181 * 182 * isaphysmem is the address of this physical contiguous low memory. 183 * isaphysmempgs is the number of pages allocated. 184 */ 185 186 #ifndef DMA_BOUNCE 187 #define DMA_BOUNCE 48 /* number of pages if memory > 16M */ 188 #endif 189 190 #ifndef DMA_BOUNCE_LOW 191 #define DMA_BOUNCE_LOW 16 /* number of pages if memory <= 16M */ 192 #endif 193 194 extern vm_offset_t isaphysmem; 195 extern int isaphysmempgs; 196 197 198 /* 199 * Variables and macros to deal with the ISA I/O hole. 200 * XXX These should be converted to machine- and bus-mapping-independent 201 * function definitions, invoked through the softc. 202 */ 203 204 extern u_long atdevbase; /* kernel virtual address of "hole" */ 205 206 /* 207 * Given a kernel virtual address for some location 208 * in the "hole" I/O space, return a physical address. 209 */ 210 #define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN)) 211 212 /* 213 * Given a physical address in the "hole", 214 * return a kernel virtual address. 215 */ 216 #define ISA_HOLE_VADDR(p) ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase)) 217 218 219 /* 220 * Miscellanous functions. 221 */ 222 void sysbeep __P((int, int)); /* beep with the system speaker */ 223 224 #endif /* _I386_ISA_MACHDEP_H_ XXX */ 225