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isa_machdep.h revision 1.4
      1 /*	$NetBSD: isa_machdep.h,v 1.4 2005/04/16 07:45:59 yamt 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. Neither the name of the University nor the names of its contributors
     56  *    may be used to endorse or promote products derived from this software
     57  *    without specific prior written permission.
     58  *
     59  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     60  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     61  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     62  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     63  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     64  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     65  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     66  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     67  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     68  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     69  * SUCH DAMAGE.
     70  *
     71  *	@(#)isa.h	5.7 (Berkeley) 5/9/91
     72  */
     73 
     74 /*
     75  * Various pieces of the i386 port want to include this file without
     76  * or in spite of using isavar.h, and should be fixed.
     77  */
     78 
     79 #ifndef _X86_ISA_MACHDEP_H_			/* XXX */
     80 #define _X86_ISA_MACHDEP_H_			/* XXX */
     81 
     82 #include <machine/bus.h>
     83 #include <dev/isa/isadmavar.h>
     84 
     85 /*
     86  * XXX THIS FILE IS A MESS.  copyright: berkeley's probably.
     87  * contents from isavar.h and isareg.h, mostly the latter.
     88  * perhaps charles's?
     89  *
     90  * copyright from berkeley's isa.h which is now dev/isa/isareg.h.
     91  */
     92 
     93 /*
     94  * Types provided to machine-independent ISA code.
     95  */
     96 struct x86_isa_chipset {
     97 	struct isa_dma_state ic_dmastate;
     98 };
     99 
    100 typedef struct x86_isa_chipset *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(struct device *, struct device *,
    109 	    struct isabus_attach_args *);
    110 int	isa_intr_alloc(isa_chipset_tag_t, int, int, int *);
    111 const struct evcnt *isa_intr_evcnt(isa_chipset_tag_t ic, int irq);
    112 void	*isa_intr_establish(isa_chipset_tag_t ic, int irq, int type,
    113 	    int level, int (*ih_fun)(void *), void *ih_arg);
    114 void	isa_intr_disestablish(isa_chipset_tag_t ic, void *handler);
    115 int	isa_mem_alloc(bus_space_tag_t, bus_size_t, bus_size_t,
    116 	    bus_addr_t, int, bus_addr_t *, bus_space_handle_t *);
    117 void	isa_mem_free(bus_space_tag_t, bus_space_handle_t, bus_size_t);
    118 
    119 #define	isa_dmainit(ic, bst, dmat, d)					\
    120 	_isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d))
    121 #define	isa_dmacascade(ic, c)						\
    122 	_isa_dmacascade(&(ic)->ic_dmastate, (c))
    123 #define	isa_dmamaxsize(ic, c)						\
    124 	_isa_dmamaxsize(&(ic)->ic_dmastate, (c))
    125 #define	isa_dmamap_create(ic, c, s, f)					\
    126 	_isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f))
    127 #define	isa_dmamap_destroy(ic, c)					\
    128 	_isa_dmamap_destroy(&(ic)->ic_dmastate, (c))
    129 #define	isa_dmastart(ic, c, a, n, p, f, bf)				\
    130 	_isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf))
    131 #define	isa_dmaabort(ic, c)						\
    132 	_isa_dmaabort(&(ic)->ic_dmastate, (c))
    133 #define	isa_dmacount(ic, c)						\
    134 	_isa_dmacount(&(ic)->ic_dmastate, (c))
    135 #define	isa_dmafinished(ic, c)						\
    136 	_isa_dmafinished(&(ic)->ic_dmastate, (c))
    137 #define	isa_dmadone(ic, c)						\
    138 	_isa_dmadone(&(ic)->ic_dmastate, (c))
    139 #define	isa_dmafreeze(ic)						\
    140 	_isa_dmafreeze(&(ic)->ic_dmastate)
    141 #define	isa_dmathaw(ic)							\
    142 	_isa_dmathaw(&(ic)->ic_dmastate)
    143 #define	isa_dmamem_alloc(ic, c, s, ap, f)				\
    144 	_isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f))
    145 #define	isa_dmamem_free(ic, c, a, s)					\
    146 	_isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s))
    147 #define	isa_dmamem_map(ic, c, a, s, kp, f)				\
    148 	_isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f))
    149 #define	isa_dmamem_unmap(ic, c, k, s)					\
    150 	_isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s))
    151 #define	isa_dmamem_mmap(ic, c, a, s, o, p, f)				\
    152 	_isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f))
    153 #define isa_drq_alloc(ic, c)						\
    154 	_isa_drq_alloc(&(ic)->ic_dmastate, c)
    155 #define isa_drq_free(ic, c)						\
    156 	_isa_drq_free(&(ic)->ic_dmastate, c)
    157 #define	isa_drq_isfree(ic, c)						\
    158 	_isa_drq_isfree(&(ic)->ic_dmastate, (c))
    159 #define	isa_malloc(ic, c, s, p, f)					\
    160 	_isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f))
    161 #define	isa_free(a, p)							\
    162 	_isa_free((a), (p))
    163 #define	isa_mappage(m, o, p)						\
    164 	_isa_mappage((m), (o), (p))
    165 
    166 /*
    167  * for ACPI code
    168  */
    169 
    170 void	isa_reinit_irq(void);
    171 
    172 /*
    173  * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
    174  * BY PORTABLE CODE.
    175  */
    176 
    177 extern struct x86_bus_dma_tag isa_bus_dma_tag;
    178 
    179 /*
    180  * XXX Various seemingly PC-specific constants, some of which may be
    181  * unnecessary anyway.
    182  */
    183 
    184 /*
    185  * RAM Physical Address Space (ignoring the above mentioned "hole")
    186  */
    187 #define	RAM_BEGIN	0x0000000	/* Start of RAM Memory */
    188 #define	RAM_END		0x1000000	/* End of RAM Memory */
    189 #define	RAM_SIZE	(RAM_END - RAM_BEGIN)
    190 
    191 /*
    192  * Oddball Physical Memory Addresses
    193  */
    194 #define	COMPAQ_RAMRELOC	0x80c00000	/* Compaq RAM relocation/diag */
    195 #define	COMPAQ_RAMSETUP	0x80c00002	/* Compaq RAM setup */
    196 #define	WEITEK_FPU	0xC0000000	/* WTL 2167 */
    197 #define	CYRIX_EMC	0xC0000000	/* Cyrix EMC */
    198 
    199 /*
    200  * stuff that used to be in pccons.c
    201  */
    202 #define	MONO_BASE	0x3B4
    203 #define	MONO_BUF	0xB0000
    204 #define	CGA_BASE	0x3D4
    205 #define	CGA_BUF		0xB8000
    206 
    207 /*
    208  * Variables and macros to deal with the ISA I/O hole.
    209  * XXX These should be converted to machine- and bus-mapping-independent
    210  * function definitions, invoked through the softc.
    211  */
    212 
    213 extern u_long atdevbase;           /* kernel virtual address of "hole" */
    214 
    215 /*
    216  * Given a kernel virtual address for some location
    217  * in the "hole" I/O space, return a physical address.
    218  */
    219 #define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN))
    220 
    221 /*
    222  * Given a physical address in the "hole",
    223  * return a kernel virtual address.
    224  */
    225 #define ISA_HOLE_VADDR(p)  ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase))
    226 
    227 
    228 /*
    229  * Miscellanous functions.
    230  */
    231 void sysbeep(int, int);		/* beep with the system speaker */
    232 
    233 #endif /* _X86_ISA_MACHDEP_H_ XXX */
    234