sys/arch/x86/include/isa_machdep.h

   1 /*      $NetBSD: isa_machdep.h,v 1.11 2011/07/01 18:22:39 dyoung 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  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*-
  34  * Copyright (c) 1990 The Regents of the University of California.
  35  * All rights reserved.
  36  *
  37  * This code is derived from software contributed to Berkeley by
  38  * William Jolitz.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 3. Neither the name of the University nor the names of its contributors
  49  *    may be used to endorse or promote products derived from this software
  50  *    without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  62  * SUCH DAMAGE.
  63  *
  64  *      @(#)isa.h       5.7 (Berkeley) 5/9/91
  65  */
  66
  67 /*
  68  * Various pieces of the i386 port want to include this file without
  69  * or in spite of using isavar.h, and should be fixed.
  70  */
  71
  72 #ifndef _X86_ISA_MACHDEP_H_                     /* XXX */
  73 #define _X86_ISA_MACHDEP_H_                     /* XXX */
  74
  75 #include <sys/bus.h>
  76 #include <sys/device.h>
  77 #include <dev/isa/isadmavar.h>
  78
  79 /*
  80  * XXX THIS FILE IS A MESS.  copyright: berkeley's probably.
  81  * contents from isavar.h and isareg.h, mostly the latter.
  82  * perhaps charles's?
  83  *
  84  * copyright from berkeley's isa.h which is now dev/isa/isareg.h.
  85  */
  86
  87 /*
  88  * Types provided to machine-independent ISA code.
  89  */
  90 struct x86_isa_chipset {
  91         struct isa_dma_state ic_dmastate;
  92 };
  93
  94 typedef struct x86_isa_chipset *isa_chipset_tag_t;
  95
  96 struct isabus_attach_args;      /* XXX */
  97
  98 /*
  99  * Functions provided to machine-independent ISA code.
 100  */
 101 void    isa_attach_hook(device_t, device_t,
 102             struct isabus_attach_args *);
 103 void    isa_detach_hook(isa_chipset_tag_t, device_t);
 104 int     isa_intr_alloc(isa_chipset_tag_t, int, int, int *);
 105 const struct evcnt *isa_intr_evcnt(isa_chipset_tag_t ic, int irq);
 106 void    *isa_intr_establish(isa_chipset_tag_t ic, int irq, int type,
 107             int level, int (*ih_fun)(void *), void *ih_arg);
 108 void    isa_intr_disestablish(isa_chipset_tag_t ic, void *handler);
 109 int     isa_mem_alloc(bus_space_tag_t, bus_size_t, bus_size_t,
 110             bus_addr_t, int, bus_addr_t *, bus_space_handle_t *);
 111 void    isa_mem_free(bus_space_tag_t, bus_space_handle_t, bus_size_t);
 112
 113 #define isa_dmadestroy(ic)                                              \
 114         _isa_dmadestroy(&(ic)->ic_dmastate)
 115 #define isa_dmainit(ic, bst, dmat, d)                                   \
 116         _isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d))
 117 #define isa_dmacascade(ic, c)                                           \
 118         _isa_dmacascade(&(ic)->ic_dmastate, (c))
 119 #define isa_dmamaxsize(ic, c)                                           \
 120         _isa_dmamaxsize(&(ic)->ic_dmastate, (c))
 121 #define isa_dmamap_create(ic, c, s, f)                                  \
 122         _isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f))
 123 #define isa_dmamap_destroy(ic, c)                                       \
 124         _isa_dmamap_destroy(&(ic)->ic_dmastate, (c))
 125 #define isa_dmastart(ic, c, a, n, p, f, bf)                             \
 126         _isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf))
 127 #define isa_dmaabort(ic, c)                                             \
 128         _isa_dmaabort(&(ic)->ic_dmastate, (c))
 129 #define isa_dmacount(ic, c)                                             \
 130         _isa_dmacount(&(ic)->ic_dmastate, (c))
 131 #define isa_dmafinished(ic, c)                                          \
 132         _isa_dmafinished(&(ic)->ic_dmastate, (c))
 133 #define isa_dmadone(ic, c)                                              \
 134         _isa_dmadone(&(ic)->ic_dmastate, (c))
 135 #define isa_dmafreeze(ic)                                               \
 136         _isa_dmafreeze(&(ic)->ic_dmastate)
 137 #define isa_dmathaw(ic)                                                 \
 138         _isa_dmathaw(&(ic)->ic_dmastate)
 139 #define isa_dmamem_alloc(ic, c, s, ap, f)                               \
 140         _isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f))
 141 #define isa_dmamem_free(ic, c, a, s)                                    \
 142         _isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s))
 143 #define isa_dmamem_map(ic, c, a, s, kp, f)                              \
 144         _isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f))
 145 #define isa_dmamem_unmap(ic, c, k, s)                                   \
 146         _isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s))
 147 #define isa_dmamem_mmap(ic, c, a, s, o, p, f)                           \
 148         _isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f))
 149 #define isa_drq_alloc(ic, c)                                            \
 150         _isa_drq_alloc(&(ic)->ic_dmastate, c)
 151 #define isa_drq_free(ic, c)                                             \
 152         _isa_drq_free(&(ic)->ic_dmastate, c)
 153 #define isa_drq_isfree(ic, c)                                           \
 154         _isa_drq_isfree(&(ic)->ic_dmastate, (c))
 155 #define isa_malloc(ic, c, s, p, f)                                      \
 156         _isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f))
 157 #define isa_free(a, p)                                                  \
 158         _isa_free((a), (p))
 159 #define isa_mappage(m, o, p)                                            \
 160         _isa_mappage((m), (o), (p))
 161
 162 /*
 163  * for ACPI code
 164  */
 165
 166 void    isa_reinit_irq(void);
 167
 168 /*
 169  * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
 170  * BY PORTABLE CODE.
 171  */
 172
 173 extern struct x86_bus_dma_tag isa_bus_dma_tag;
 174
 175 /*
 176  * XXX Various seemingly PC-specific constants, some of which may be
 177  * unnecessary anyway.
 178  */
 179
 180 /*
 181  * RAM Physical Address Space (ignoring the above mentioned "hole")
 182  */
 183 #define RAM_BEGIN       0x0000000       /* Start of RAM Memory */
 184 #define RAM_END         0x1000000       /* End of RAM Memory */
 185 #define RAM_SIZE        (RAM_END - RAM_BEGIN)
 186
 187 /*
 188  * Oddball Physical Memory Addresses
 189  */
 190 #define COMPAQ_RAMRELOC 0x80c00000      /* Compaq RAM relocation/diag */
 191 #define COMPAQ_RAMSETUP 0x80c00002      /* Compaq RAM setup */
 192 #define WEITEK_FPU      0xC0000000      /* WTL 2167 */
 193 #define CYRIX_EMC       0xC0000000      /* Cyrix EMC */
 194
 195 /*
 196  * stuff that used to be in pccons.c
 197  */
 198 #define MONO_BASE       0x3B4
 199 #define MONO_BUF        0xB0000
 200 #define CGA_BASE        0x3D4
 201 #define CGA_BUF         0xB8000
 202
 203 /*
 204  * Variables and macros to deal with the ISA I/O hole.
 205  * XXX These should be converted to machine- and bus-mapping-independent
 206  * function definitions, invoked through the softc.
 207  */
 208
 209 extern vaddr_t atdevbase;         /* kernel virtual address of "hole" */
 210
 211 /*
 212  * Given a kernel virtual address for some location
 213  * in the "hole" I/O space, return a physical address.
 214  */
 215 #define ISA_PHYSADDR(v) ((bus_addr_t)(v) - atdevbase + IOM_BEGIN)
 216
 217 /*
 218  * Given a physical address in the "hole",
 219  * return a kernel virtual address.
 220  */
 221 #define ISA_HOLE_VADDR(p)  ((void *) ((vaddr_t)(p) - IOM_BEGIN + atdevbase))
 222
 223
 224 /*
 225  * Miscellanous functions.
 226  */
 227 void sysbeep(int, int);         /* beep with the system speaker */
 228
 229 #endif /* _X86_ISA_MACHDEP_H_ XXX */