X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/c0fea4742e91338fffdcf79f86a7c1d5e2b97eb1..8ad349bb6ed4a0be06e34c92be0d98b92e078db4:/bsd/dev/i386/pio.h diff --git a/bsd/dev/i386/pio.h b/bsd/dev/i386/pio.h new file mode 100644 index 000000000..51cc7ca45 --- /dev/null +++ b/bsd/dev/i386/pio.h @@ -0,0 +1,250 @@ +/* + * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved. + * + * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ + * + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the + * License may not be used to create, or enable the creation or + * redistribution of, unlawful or unlicensed copies of an Apple operating + * system, or to circumvent, violate, or enable the circumvention or + * violation of, any terms of an Apple operating system software license + * agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ + */ +/* + * @OSF_COPYRIGHT@ + */ +/* + * HISTORY + * + * Revision 1.2 1998/09/30 21:20:45 wsanchez + * Merged in IntelMerge1 (mburg: Intel support) + * + * Revision 1.1.2.1 1998/09/30 18:18:50 mburg + * Changes for Intel port + * + * Revision 1.1.1.1 1998/03/07 02:25:38 wsanchez + * Import of OSF Mach kernel (~mburg) + * + * Revision 1.1.8.2 1996/07/31 09:46:36 paire + * Merged with nmk20b7_shared (1.1.11.2 -> 1.1.11.1) + * [96/06/10 paire] + * + * Revision 1.1.11.2 1996/06/13 12:38:25 bernadat + * Do not use inline macros when MACH_ASSERT is configured. + * [96/05/24 bernadat] + * + * Revision 1.1.11.1 1996/05/14 13:50:23 paire + * Added new linl and loutl __inline__. + * Added conditional compilation for [l]{in|oub}[bwl]() __inline__. + * [95/11/24 paire] + * + * Revision 1.1.8.1 1994/09/23 02:00:28 ezf + * change marker to not FREE + * [1994/09/22 21:25:52 ezf] + * + * Revision 1.1.4.5 1993/08/09 19:40:41 dswartz + * Add ANSI prototypes - CR#9523 + * [1993/08/06 17:45:57 dswartz] + * + * Revision 1.1.4.4 1993/06/11 15:17:37 jeffc + * CR9176 - ANSI C violations: inb/outb macros must be changed from + * ({ ... }) to inline functions, with proper type definitions. Callers + * must pass proper types to these functions: 386 I/O port addresses + * are unsigned shorts (not pointers). + * [1993/06/10 14:26:10 jeffc] + * + * Revision 1.1.4.3 1993/06/07 22:09:28 jeffc + * CR9176 - ANSI C violations: trailing tokens on CPP + * directives, extra semicolons after decl_ ..., asm keywords + * [1993/06/07 19:00:26 jeffc] + * + * Revision 1.1.4.2 1993/06/04 15:28:45 jeffc + * CR9176 - ANSI problems - + * Added casts to get macros to take caddr_t as an I/O space address. + * [1993/06/04 13:45:55 jeffc] + * + * Revision 1.1 1992/09/30 02:25:51 robert + * Initial revision + * + * $EndLog$ + */ +/* CMU_HIST */ +/* + * Revision 2.5 91/05/14 16:14:20 mrt + * Correcting copyright + * + * Revision 2.4 91/02/05 17:13:56 mrt + * Changed to new Mach copyright + * [91/02/01 17:37:08 mrt] + * + * Revision 2.3 90/12/20 16:36:37 jeffreyh + * changes for __STDC__ + * [90/12/07 jeffreyh] + * + * Revision 2.2 90/11/26 14:48:41 rvb + * Pulled from 2.5 + * [90/11/22 10:09:38 rvb] + * + * [90/08/14 mg32] + * + * Now we know how types are factor in. + * Cleaned up a bunch: eliminated ({ for output and flushed unused + * output variables. + * [90/08/14 rvb] + * + * This is how its done in gcc: + * Created. + * [90/03/26 rvb] + * + */ +/* CMU_ENDHIST */ +/* + * Mach Operating System + * Copyright (c) 1991,1990 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + */ +#ifndef I386_PIO_H +#define I386_PIO_H + +typedef unsigned short i386_ioport_t; + +/* read a longword */ +extern unsigned long inl( + i386_ioport_t port); +/* read a shortword */ +extern unsigned short inw( + i386_ioport_t port); +/* read a byte */ +extern unsigned char inb( + i386_ioport_t port); +/* write a longword */ +extern void outl( + i386_ioport_t port, + unsigned long datum); +/* write a word */ +extern void outw( + i386_ioport_t port, + unsigned short datum); +/* write a longword */ +extern void outb( + i386_ioport_t port, + unsigned char datum); + +/* input an array of longwords */ +extern void linl( + i386_ioport_t port, + int * data, + int count); +/* output an array of longwords */ +extern void loutl( + i386_ioport_t port, + int * data, + int count); + +/* input an array of words */ +extern void linw( + i386_ioport_t port, + int * data, + int count); +/* output an array of words */ +extern void loutw( + i386_ioport_t port, + int * data, + int count); + +/* input an array of bytes */ +extern void linb( + i386_ioport_t port, + char * data, + int count); +/* output an array of bytes */ +extern void loutb( + i386_ioport_t port, + char * data, + int count); + +extern __inline__ unsigned long inl( + i386_ioport_t port) +{ + unsigned long datum; + __asm__ volatile("inl %1, %0" : "=a" (datum) : "d" (port)); + return(datum); +} + +extern __inline__ unsigned short inw( + i386_ioport_t port) +{ + unsigned short datum; + __asm__ volatile(".byte 0x66; inl %1, %0" : "=a" (datum) : "d" (port)); + return(datum); +} + +extern __inline__ unsigned char inb( + i386_ioport_t port) +{ + unsigned char datum; + __asm__ volatile("inb %1, %0" : "=a" (datum) : "d" (port)); + return(datum); +} + +extern __inline__ void outl( + i386_ioport_t port, + unsigned long datum) +{ + __asm__ volatile("outl %0, %1" : : "a" (datum), "d" (port)); +} + +extern __inline__ void outw( + i386_ioport_t port, + unsigned short datum) +{ + __asm__ volatile(".byte 0x66; outl %0, %1" : : "a" (datum), "d" (port)); +} + +extern __inline__ void outb( + i386_ioport_t port, + unsigned char datum) +{ + __asm__ volatile("outb %0, %1" : : "a" (datum), "d" (port)); +} + +#endif /* I386_PIO_H */