xref: /netbsd-src/sys/arch/x86/include/isa_machdep.h (revision 8b0f9554ff8762542c4defc4f70e1eb76fb508fa)
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