Annotation of sys/arch/amd64/include/isa_machdep.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: isa_machdep.h,v 1.6 2006/03/01 21:51:39 deraadt Exp $ */
2: /* $NetBSD: isa_machdep.h,v 1.2 2003/05/09 23:51:28 fvdl Exp $ */
3:
4: /*-
5: * Copyright (c) 1996, 1997, 1998 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. Neither the name of the University nor the names of its contributors
57: * may be used to endorse or promote products derived from this software
58: * without specific prior written permission.
59: *
60: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70: * SUCH DAMAGE.
71: *
72: * @(#)isa.h 5.7 (Berkeley) 5/9/91
73: */
74:
75: /*
76: * Various pieces of the i386 port want to include this file without
77: * or in spite of using isavar.h, and should be fixed.
78: */
79:
80: #ifndef _I386_ISA_MACHDEP_H_ /* XXX */
81: #define _I386_ISA_MACHDEP_H_ /* XXX */
82:
83: #include <machine/bus.h>
84: #include <dev/isa/isadmavar.h>
85:
86: /*
87: * ISA can only DMA to 0-16M.
88: */
89: #define ISA_DMA_BOUNCE_THRESHOLD 0x00ffffff
90:
91: /*
92: * XXX THIS FILE IS A MESS. copyright: berkeley's probably.
93: * contents from isavar.h and isareg.h, mostly the latter.
94: * perhaps charles's?
95: *
96: * copyright from berkeley's isa.h which is now dev/isa/isareg.h.
97: */
98:
99: /*
100: * Types provided to machine-independent ISA code.
101: */
102:
103: typedef void *isa_chipset_tag_t;
104:
105: struct device; /* XXX */
106: struct isabus_attach_args; /* XXX */
107:
108: /*
109: * Functions provided to machine-independent ISA code.
110: */
111: void isa_attach_hook(struct device *, struct device *,
112: struct isabus_attach_args *);
113: int isa_intr_alloc(isa_chipset_tag_t, int, int, int *);
114: void *isa_intr_establish(isa_chipset_tag_t ic, int irq, int type,
115: int level, int (*ih_fun)(void *), void *ih_arg, char *);
116: void isa_intr_disestablish(isa_chipset_tag_t ic, void *handler);
117: int isa_mem_alloc(bus_space_tag_t, bus_size_t, bus_size_t,
118: bus_addr_t, int, bus_addr_t *, bus_space_handle_t *);
119: void isa_mem_free(bus_space_tag_t, bus_space_handle_t, bus_size_t);
120:
121: int isa_intr_check(isa_chipset_tag_t, int, int);
122:
123: /*
124: * for ACPI code
125: */
126:
127: void isa_reinit_irq(void);
128:
129: /*
130: * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
131: * BY PORTABLE CODE.
132: */
133:
134: extern struct x86_bus_dma_tag isa_bus_dma_tag;
135:
136: /*
137: * Cookie used by ISA dma. A pointer to one of these it stashed in
138: * the DMA map.
139: */
140: struct x86_isa_dma_cookie {
141: int id_flags; /* flags; see below */
142:
143: void *id_origbuf; /* pointer to orig buffer if
144: bouncing */
145: bus_size_t id_origbuflen; /* ...and size */
146:
147: void *id_bouncebuf; /* pointer to the bounce buffer */
148: bus_size_t id_bouncebuflen; /* ...and size */
149: int id_nbouncesegs; /* number of valid bounce segs */
150: bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
151: physical memory segments */
152: };
153:
154: /* id_flags */
155: #define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */
156: #define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */
157: #define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */
158:
159:
160:
161: /*
162: * XXX Various seemingly PC-specific constants, some of which may be
163: * unnecessary anyway.
164: */
165:
166: /*
167: * RAM Physical Address Space (ignoring the above mentioned "hole")
168: */
169: #define RAM_BEGIN 0x0000000 /* Start of RAM Memory */
170: #define RAM_END 0x1000000 /* End of RAM Memory */
171: #define RAM_SIZE (RAM_END - RAM_BEGIN)
172:
173: /*
174: * Oddball Physical Memory Addresses
175: */
176: #define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */
177: #define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */
178: #define WEITEK_FPU 0xC0000000 /* WTL 2167 */
179: #define CYRIX_EMC 0xC0000000 /* Cyrix EMC */
180:
181: /*
182: * stuff that used to be in pccons.c
183: */
184: #define MONO_BASE 0x3B4
185: #define MONO_BUF 0xB0000
186: #define CGA_BASE 0x3D4
187: #define CGA_BUF 0xB8000
188:
189: /*
190: * Variables and macros to deal with the ISA I/O hole.
191: * XXX These should be converted to machine- and bus-mapping-independent
192: * function definitions, invoked through the softc.
193: */
194:
195: extern u_long atdevbase; /* kernel virtual address of "hole" */
196:
197: /*
198: * Given a kernel virtual address for some location
199: * in the "hole" I/O space, return a physical address.
200: */
201: #define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN))
202:
203: /*
204: * Given a physical address in the "hole",
205: * return a kernel virtual address.
206: */
207: #define ISA_HOLE_VADDR(p) ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase))
208:
209: #endif /* _I386_ISA_MACHDEP_H_ XXX */
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to isa_machdep.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / amd64 / include