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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * @OSF_COPYRIGHT@
24: */
25: /*
26: * HISTORY
27: *
28: * Revision 1.2 1998/09/30 21:20:45 wsanchez
29: * Merged in IntelMerge1 (mburg: Intel support)
30: *
31: * Revision 1.1.2.1 1998/09/30 18:18:50 mburg
32: * Changes for Intel port
33: *
34: * Revision 1.1.1.1 1998/03/07 02:25:38 wsanchez
35: * Import of OSF Mach kernel (~mburg)
36: *
37: * Revision 1.1.8.2 1996/07/31 09:46:36 paire
38: * Merged with nmk20b7_shared (1.1.11.2 -> 1.1.11.1)
39: * [96/06/10 paire]
40: *
41: * Revision 1.1.11.2 1996/06/13 12:38:25 bernadat
42: * Do not use inline macros when MACH_ASSERT is configured.
43: * [96/05/24 bernadat]
44: *
45: * Revision 1.1.11.1 1996/05/14 13:50:23 paire
46: * Added new linl and loutl __inline__.
47: * Added conditional compilation for [l]{in|oub}[bwl]() __inline__.
48: * [95/11/24 paire]
49: *
50: * Revision 1.1.8.1 1994/09/23 02:00:28 ezf
51: * change marker to not FREE
52: * [1994/09/22 21:25:52 ezf]
53: *
54: * Revision 1.1.4.5 1993/08/09 19:40:41 dswartz
55: * Add ANSI prototypes - CR#9523
56: * [1993/08/06 17:45:57 dswartz]
57: *
58: * Revision 1.1.4.4 1993/06/11 15:17:37 jeffc
59: * CR9176 - ANSI C violations: inb/outb macros must be changed from
60: * ({ ... }) to inline functions, with proper type definitions. Callers
61: * must pass proper types to these functions: 386 I/O port addresses
62: * are unsigned shorts (not pointers).
63: * [1993/06/10 14:26:10 jeffc]
64: *
65: * Revision 1.1.4.3 1993/06/07 22:09:28 jeffc
66: * CR9176 - ANSI C violations: trailing tokens on CPP
67: * directives, extra semicolons after decl_ ..., asm keywords
68: * [1993/06/07 19:00:26 jeffc]
69: *
70: * Revision 1.1.4.2 1993/06/04 15:28:45 jeffc
71: * CR9176 - ANSI problems -
72: * Added casts to get macros to take caddr_t as an I/O space address.
73: * [1993/06/04 13:45:55 jeffc]
74: *
75: * Revision 1.1 1992/09/30 02:25:51 robert
76: * Initial revision
77: *
78: * $EndLog$
79: */
80: /* CMU_HIST */
81: /*
82: * Revision 2.5 91/05/14 16:14:20 mrt
83: * Correcting copyright
84: *
85: * Revision 2.4 91/02/05 17:13:56 mrt
86: * Changed to new Mach copyright
87: * [91/02/01 17:37:08 mrt]
88: *
89: * Revision 2.3 90/12/20 16:36:37 jeffreyh
90: * changes for __STDC__
91: * [90/12/07 jeffreyh]
92: *
93: * Revision 2.2 90/11/26 14:48:41 rvb
94: * Pulled from 2.5
95: * [90/11/22 10:09:38 rvb]
96: *
97: * [90/08/14 mg32]
98: *
99: * Now we know how types are factor in.
100: * Cleaned up a bunch: eliminated ({ for output and flushed unused
101: * output variables.
102: * [90/08/14 rvb]
103: *
104: * This is how its done in gcc:
105: * Created.
106: * [90/03/26 rvb]
107: *
108: */
109: /* CMU_ENDHIST */
110: /*
111: * Mach Operating System
112: * Copyright (c) 1991,1990 Carnegie Mellon University
113: * All Rights Reserved.
114: *
115: * Permission to use, copy, modify and distribute this software and its
116: * documentation is hereby granted, provided that both the copyright
117: * notice and this permission notice appear in all copies of the
118: * software, derivative works or modified versions, and any portions
119: * thereof, and that both notices appear in supporting documentation.
120: *
121: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
122: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
123: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
124: *
125: * Carnegie Mellon requests users of this software to return to
126: *
127: * Software Distribution Coordinator or [email protected]
128: * School of Computer Science
129: * Carnegie Mellon University
130: * Pittsburgh PA 15213-3890
131: *
132: * any improvements or extensions that they make and grant Carnegie Mellon
133: * the rights to redistribute these changes.
134: */
135: /*
136: */
137: #ifndef I386_PIO_H
138: #define I386_PIO_H
139:
140: typedef unsigned short i386_ioport_t;
141:
142: /* read a longword */
143: extern unsigned long inl(
144: i386_ioport_t port);
145: /* read a shortword */
146: extern unsigned short inw(
147: i386_ioport_t port);
148: /* read a byte */
149: extern unsigned char inb(
150: i386_ioport_t port);
151: /* write a longword */
152: extern void outl(
153: i386_ioport_t port,
154: unsigned long datum);
155: /* write a word */
156: extern void outw(
157: i386_ioport_t port,
158: unsigned short datum);
159: /* write a longword */
160: extern void outb(
161: i386_ioport_t port,
162: unsigned char datum);
163:
164: /* input an array of longwords */
165: extern void linl(
166: i386_ioport_t port,
167: int * data,
168: int count);
169: /* output an array of longwords */
170: extern void loutl(
171: i386_ioport_t port,
172: int * data,
173: int count);
174:
175: /* input an array of words */
176: extern void linw(
177: i386_ioport_t port,
178: int * data,
179: int count);
180: /* output an array of words */
181: extern void loutw(
182: i386_ioport_t port,
183: int * data,
184: int count);
185:
186: /* input an array of bytes */
187: extern void linb(
188: i386_ioport_t port,
189: char * data,
190: int count);
191: /* output an array of bytes */
192: extern void loutb(
193: i386_ioport_t port,
194: char * data,
195: int count);
196:
197: extern __inline__ unsigned long inl(
198: i386_ioport_t port)
199: {
200: unsigned long datum;
201: __asm__ volatile("inl %1, %0" : "=a" (datum) : "d" (port));
202: return(datum);
203: }
204:
205: extern __inline__ unsigned short inw(
206: i386_ioport_t port)
207: {
208: unsigned short datum;
209: __asm__ volatile(".byte 0x66; inl %1, %0" : "=a" (datum) : "d" (port));
210: return(datum);
211: }
212:
213: extern __inline__ unsigned char inb(
214: i386_ioport_t port)
215: {
216: unsigned char datum;
217: __asm__ volatile("inb %1, %0" : "=a" (datum) : "d" (port));
218: return(datum);
219: }
220:
221: extern __inline__ void outl(
222: i386_ioport_t port,
223: unsigned long datum)
224: {
225: __asm__ volatile("outl %0, %1" : : "a" (datum), "d" (port));
226: }
227:
228: extern __inline__ void outw(
229: i386_ioport_t port,
230: unsigned short datum)
231: {
232: __asm__ volatile(".byte 0x66; outl %0, %1" : : "a" (datum), "d" (port));
233: }
234:
235: extern __inline__ void outb(
236: i386_ioport_t port,
237: unsigned char datum)
238: {
239: __asm__ volatile("outb %0, %1" : : "a" (datum), "d" (port));
240: }
241:
242: #endif /* I386_PIO_H */
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