isa_machdep.h revision 1.15
1 /* $NetBSD: isa_machdep.h,v 1.15 2000/06/01 00:04:51 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /*- 41 * Copyright (c) 1990 The Regents of the University of California. 42 * All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * William Jolitz. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by the University of 58 * California, Berkeley and its contributors. 59 * 4. Neither the name of the University nor the names of its contributors 60 * may be used to endorse or promote products derived from this software 61 * without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 73 * SUCH DAMAGE. 74 * 75 * @(#)isa.h 5.7 (Berkeley) 5/9/91 76 */ 77 78 /* 79 * Various pieces of the i386 port want to include this file without 80 * or in spite of using isavar.h, and should be fixed. 81 */ 82 83 #ifndef _I386_ISA_MACHDEP_H_ /* XXX */ 84 #define _I386_ISA_MACHDEP_H_ /* XXX */ 85 86 #include <machine/bus.h> 87 #include <dev/isa/isadmavar.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 struct i386_isa_chipset { 101 struct isa_dma_state ic_dmastate; 102 }; 103 104 typedef struct i386_isa_chipset *isa_chipset_tag_t; 105 106 struct device; /* XXX */ 107 struct isabus_attach_args; /* XXX */ 108 109 /* 110 * Functions provided to machine-independent ISA code. 111 */ 112 void isa_attach_hook(struct device *, struct device *, 113 struct isabus_attach_args *); 114 int isa_intr_alloc(isa_chipset_tag_t, int, int, int *); 115 void *isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, 116 int level, int (*ih_fun)(void *), void *ih_arg); 117 void isa_intr_disestablish(isa_chipset_tag_t ic, void *handler); 118 int isa_mem_alloc(bus_space_tag_t, bus_size_t, bus_size_t, 119 bus_addr_t, int, bus_addr_t *, bus_space_handle_t *); 120 void isa_mem_free(bus_space_tag_t, bus_space_handle_t, bus_size_t); 121 122 #define isa_dmainit(ic, bst, dmat, d) \ 123 _isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d)) 124 #define isa_dmacascade(ic, c) \ 125 _isa_dmacascade(&(ic)->ic_dmastate, (c)) 126 #define isa_dmamaxsize(ic, c) \ 127 _isa_dmamaxsize(&(ic)->ic_dmastate, (c)) 128 #define isa_dmamap_create(ic, c, s, f) \ 129 _isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f)) 130 #define isa_dmamap_destroy(ic, c) \ 131 _isa_dmamap_destroy(&(ic)->ic_dmastate, (c)) 132 #define isa_dmastart(ic, c, a, n, p, f, bf) \ 133 _isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf)) 134 #define isa_dmaabort(ic, c) \ 135 _isa_dmaabort(&(ic)->ic_dmastate, (c)) 136 #define isa_dmacount(ic, c) \ 137 _isa_dmacount(&(ic)->ic_dmastate, (c)) 138 #define isa_dmafinished(ic, c) \ 139 _isa_dmafinished(&(ic)->ic_dmastate, (c)) 140 #define isa_dmadone(ic, c) \ 141 _isa_dmadone(&(ic)->ic_dmastate, (c)) 142 #define isa_dmafreeze(ic) \ 143 _isa_dmafreeze(&(ic)->ic_dmastate) 144 #define isa_dmathaw(ic) \ 145 _isa_dmathaw(&(ic)->ic_dmastate) 146 #define isa_dmamem_alloc(ic, c, s, ap, f) \ 147 _isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f)) 148 #define isa_dmamem_free(ic, c, a, s) \ 149 _isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s)) 150 #define isa_dmamem_map(ic, c, a, s, kp, f) \ 151 _isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f)) 152 #define isa_dmamem_unmap(ic, c, k, s) \ 153 _isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s)) 154 #define isa_dmamem_mmap(ic, c, a, s, o, p, f) \ 155 _isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f)) 156 #define isa_drq_isfree(ic, c) \ 157 _isa_drq_isfree(&(ic)->ic_dmastate, (c)) 158 #define isa_malloc(ic, c, s, p, f) \ 159 _isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f)) 160 #define isa_free(a, p) \ 161 _isa_free((a), (p)) 162 #define isa_mappage(m, o, p) \ 163 _isa_mappage((m), (o), (p)) 164 165 /* 166 * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED 167 * BY PORTABLE CODE. 168 */ 169 170 extern struct i386_bus_dma_tag isa_bus_dma_tag; 171 172 /* 173 * Cookie used by ISA dma. A pointer to one of these it stashed in 174 * the DMA map. 175 */ 176 struct i386_isa_dma_cookie { 177 int id_flags; /* flags; see below */ 178 179 /* 180 * Information about the original buffer used during 181 * DMA map syncs. Note that origibuflen is only used 182 * for ID_BUFTYPE_LINEAR. 183 */ 184 void *id_origbuf; /* pointer to orig buffer if 185 bouncing */ 186 bus_size_t id_origbuflen; /* ...and size */ 187 int id_buftype; /* type of buffer */ 188 189 void *id_bouncebuf; /* pointer to the bounce buffer */ 190 bus_size_t id_bouncebuflen; /* ...and size */ 191 int id_nbouncesegs; /* number of valid bounce segs */ 192 bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer 193 physical memory segments */ 194 }; 195 196 /* id_flags */ 197 #define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */ 198 #define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */ 199 #define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */ 200 201 /* id_buftype */ 202 #define ID_BUFTYPE_INVALID 0 203 #define ID_BUFTYPE_LINEAR 1 204 #define ID_BUFTYPE_MBUF 2 205 #define ID_BUFTYPE_UIO 3 206 #define ID_BUFTYPE_RAW 4 207 208 /* 209 * XXX Various seemingly PC-specific constants, some of which may be 210 * unnecessary anyway. 211 */ 212 213 /* 214 * RAM Physical Address Space (ignoring the above mentioned "hole") 215 */ 216 #define RAM_BEGIN 0x0000000 /* Start of RAM Memory */ 217 #define RAM_END 0x1000000 /* End of RAM Memory */ 218 #define RAM_SIZE (RAM_END - RAM_BEGIN) 219 220 /* 221 * Oddball Physical Memory Addresses 222 */ 223 #define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */ 224 #define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */ 225 #define WEITEK_FPU 0xC0000000 /* WTL 2167 */ 226 #define CYRIX_EMC 0xC0000000 /* Cyrix EMC */ 227 228 /* 229 * stuff that used to be in pccons.c 230 */ 231 #define MONO_BASE 0x3B4 232 #define MONO_BUF 0xB0000 233 #define CGA_BASE 0x3D4 234 #define CGA_BUF 0xB8000 235 #define IOPHYSMEM 0xA0000 236 237 238 /* 239 * Interrupt handler chains. isa_intr_establish() inserts a handler into 240 * the list. The handler is called with its (single) argument. 241 */ 242 243 struct intrhand { 244 int (*ih_fun)(void *); 245 void *ih_arg; 246 u_long ih_count; 247 struct intrhand *ih_next; 248 int ih_level; 249 int ih_irq; 250 }; 251 252 253 /* 254 * ISA DMA bounce buffers. 255 * XXX should be made partially machine- and bus-mapping-independent. 256 * 257 * DMA_BOUNCE is the number of pages of low-addressed physical memory 258 * to acquire for ISA bounce buffers. 259 * 260 * isaphysmem is the location of those bounce buffers. (They are currently 261 * assumed to be contiguous. 262 */ 263 264 #ifndef DMA_BOUNCE 265 #define DMA_BOUNCE 8 /* one buffer per channel */ 266 #endif 267 268 extern vaddr_t isaphysmem; 269 270 271 /* 272 * Variables and macros to deal with the ISA I/O hole. 273 * XXX These should be converted to machine- and bus-mapping-independent 274 * function definitions, invoked through the softc. 275 */ 276 277 extern u_long atdevbase; /* kernel virtual address of "hole" */ 278 279 /* 280 * Given a kernel virtual address for some location 281 * in the "hole" I/O space, return a physical address. 282 */ 283 #define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN)) 284 285 /* 286 * Given a physical address in the "hole", 287 * return a kernel virtual address. 288 */ 289 #define ISA_HOLE_VADDR(p) ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase)) 290 291 292 /* 293 * Miscellanous functions. 294 */ 295 void sysbeep(int, int); /* beep with the system speaker */ 296 297 #endif /* _I386_ISA_MACHDEP_H_ XXX */ 298
Indexes created Wed Oct 22 13:09:56 GMT 2025