| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
| 7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
| 8 | * Original Code as defined in and that are subject to the Apple Public␊ |
| 9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
| 10 | * except in compliance with the License. Please obtain a copy of the␊ |
| 11 | * License at http://www.apple.com/publicsource and read it before using␊ |
| 12 | * this file.␊ |
| 13 | * ␊ |
| 14 | * The Original Code and all software distributed under the License are␊ |
| 15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
| 19 | * License for the specific language governing rights and limitations␊ |
| 20 | * under the License.␊ |
| 21 | * ␊ |
| 22 | * @APPLE_LICENSE_HEADER_END@␊ |
| 23 | */␊ |
| 24 | /*␊ |
| 25 | * Copyright (c) 1992 NeXT Computer, Inc.␊ |
| 26 | *␊ |
| 27 | * Inlines for io space access.␊ |
| 28 | *␊ |
| 29 | * HISTORY␊ |
| 30 | *␊ |
| 31 | * 20 May 1992 ? at NeXT␊ |
| 32 | *␉Created.␊ |
| 33 | */␊ |
| 34 | ␊ |
| 35 | #ifndef __LIBSAIO_IO_INLINE_H␊ |
| 36 | #define __LIBSAIO_IO_INLINE_H␊ |
| 37 | ␊ |
| 38 | ␊ |
| 39 | /*␊ |
| 40 | *############################################################################␊ |
| 41 | *␊ |
| 42 | * x86 IN/OUT I/O inline functions.␊ |
| 43 | *␊ |
| 44 | * IN : inb, inw, inl␊ |
| 45 | * IN(port)␊ |
| 46 | *␊ |
| 47 | * OUT: outb, outw, outl␊ |
| 48 | * OUT(port, data)␊ |
| 49 | *␊ |
| 50 | *############################################################################␊ |
| 51 | */␊ |
| 52 | ␊ |
| 53 | #define __IN(s, u) \␊ |
| 54 | static inline unsigned u \␊ |
| 55 | in##s(unsigned short port) \␊ |
| 56 | { \␊ |
| 57 | unsigned u data; \␊ |
| 58 | asm volatile ( \␊ |
| 59 | ␉"in" #s " %1,%0" \␊ |
| 60 | ␉␉: "=a" (data) \␊ |
| 61 | ␉␉: "d" (port)); \␊ |
| 62 | return (data); \␊ |
| 63 | }␊ |
| 64 | ␊ |
| 65 | #define __OUT(s, u) \␊ |
| 66 | static inline void \␊ |
| 67 | out##s(unsigned short port, unsigned u data) \␊ |
| 68 | { \␊ |
| 69 | asm volatile ( \␊ |
| 70 | ␉"out" #s " %1,%0" \␊ |
| 71 | ␉␉: \␊ |
| 72 | ␉␉: "d" (port), "a" (data)); \␊ |
| 73 | }␊ |
| 74 | ␊ |
| 75 | __IN(b, char) /* inb() */␊ |
| 76 | __IN(w, short) /* inw() */␊ |
| 77 | __IN(l, long) /* inl() */␊ |
| 78 | ␊ |
| 79 | __OUT(b, char) /* outb() */␊ |
| 80 | __OUT(w, short) /* outw() */␊ |
| 81 | __OUT(l, long) /* outl() */␊ |
| 82 | ␊ |
| 83 | ␊ |
| 84 | static inline void cmos_write_byte (int loc, int val)␊ |
| 85 | {␊ |
| 86 | ␉outb (0x70, loc);␊ |
| 87 | ␉outb (0x71, val);␊ |
| 88 | }␊ |
| 89 | ␊ |
| 90 | static inline unsigned cmos_read_byte (int loc)␊ |
| 91 | {␊ |
| 92 | ␉outb (0x70, loc);␊ |
| 93 | ␉return inb (0x71);␊ |
| 94 | }␊ |
| 95 | ␊ |
| 96 | #define CMOS_WRITE_BYTE(x, y)␉cmos_write_byte(x, y)␊ |
| 97 | #define CMOS_READ_BYTE(x)␉cmos_read_byte(x)␊ |
| 98 | ␊ |
| 99 | static inline void cli() {␊ |
| 100 | ␉asm("cli");␊ |
| 101 | }␊ |
| 102 | static inline void sti() {␊ |
| 103 | ␉asm("sti");␊ |
| 104 | }␊ |
| 105 | ␊ |
| 106 | #endif /* !__LIBSAIO_IO_INLINE_H */␊ |
| 107 | |
