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| Source at commit 214 created 13 years 5 months ago. By ifabio, update to chameleon trunk 630, and now the pakage folder is the same as blackosx branch, also add Icon "building" into buildpkg script, and add mint theme info into the English localizable.strings. | |
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| 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 | * Mach Operating System␊ |
| 26 | * Copyright (c) 1990 Carnegie-Mellon University␊ |
| 27 | * Copyright (c) 1989 Carnegie-Mellon University␊ |
| 28 | * All rights reserved. The CMU software License Agreement specifies␊ |
| 29 | * the terms and conditions for use and redistribution.␊ |
| 30 | */␊ |
| 31 | ␊ |
| 32 | /*␊ |
| 33 | * ␉␉␉INTEL CORPORATION PROPRIETARY INFORMATION␊ |
| 34 | *␊ |
| 35 | *␉This software is supplied under the terms of a license agreement or ␊ |
| 36 | *␉nondisclosure agreement with Intel Corporation and may not be copied ␊ |
| 37 | *␉nor disclosed except in accordance with the terms of that agreement.␊ |
| 38 | *␊ |
| 39 | *␉Copyright 1988, 1989 Intel Corporation␊ |
| 40 | */␊ |
| 41 | ␊ |
| 42 | /*␊ |
| 43 | * Copyright 1993 NeXT, Inc.␊ |
| 44 | * All rights reserved.␊ |
| 45 | */␊ |
| 46 | ␊ |
| 47 | #include "libsaio.h"␊ |
| 48 | ␊ |
| 49 | /*␊ |
| 50 | * keyboard controller (8042) I/O port addresses␊ |
| 51 | */␊ |
| 52 | #define PORT_A 0x60 /* port A */␊ |
| 53 | #define PORT_B 0x64 /* port B */␊ |
| 54 | ␊ |
| 55 | /*␊ |
| 56 | * keyboard controller command␊ |
| 57 | */␊ |
| 58 | #define CMD_WOUT 0xd1 /* write controller's output port */␊ |
| 59 | ␊ |
| 60 | /*␊ |
| 61 | * keyboard controller status flags␊ |
| 62 | */␊ |
| 63 | #define KB_INFULL 0x2 /* input buffer full */␊ |
| 64 | #define KB_OUTFULL 0x1 /* output buffer full */␊ |
| 65 | ␊ |
| 66 | #define KB_A20 0x9f /* enable A20,␊ |
| 67 | enable output buffer full interrupt␊ |
| 68 | enable data line␊ |
| 69 | disable clock line */␊ |
| 70 | ␊ |
| 71 | //==========================================================================␊ |
| 72 | // Enable A20 gate to be able to access memory above 1MB␊ |
| 73 | ␊ |
| 74 | static inline void flushKeyboardInputBuffer()␊ |
| 75 | {␊ |
| 76 | unsigned char ret;␊ |
| 77 | /* Apparently all flags on means that they're invalid and that the code␊ |
| 78 | should stop trying to check them because they'll never change */␊ |
| 79 | do␊ |
| 80 | {␊ |
| 81 | ret = inb(PORT_B);␊ |
| 82 | } while( (ret != 0xff) && (ret & KB_INFULL));␊ |
| 83 | }␊ |
| 84 | ␊ |
| 85 | void enableA20()␊ |
| 86 | {␊ |
| 87 | /* make sure that the input buffer is empty */␊ |
| 88 | flushKeyboardInputBuffer();␊ |
| 89 | ␊ |
| 90 | /* make sure that the output buffer is empty */␊ |
| 91 | if (inb(PORT_B) & KB_OUTFULL)␊ |
| 92 | (void)inb(PORT_A);␊ |
| 93 | ␊ |
| 94 | /* make sure that the input buffer is empty */␊ |
| 95 | flushKeyboardInputBuffer();␊ |
| 96 | ␊ |
| 97 | /* write output port */␊ |
| 98 | outb(PORT_B, CMD_WOUT);␊ |
| 99 | delay(100);␊ |
| 100 | ␊ |
| 101 | /* wait until command is accepted */␊ |
| 102 | flushKeyboardInputBuffer();␊ |
| 103 | ␊ |
| 104 | outb(PORT_A, KB_A20);␊ |
| 105 | delay(100);␊ |
| 106 | ␊ |
| 107 | /* wait until done */␊ |
| 108 | flushKeyboardInputBuffer();␊ |
| 109 | }␊ |
| 110 | ␊ |
| 111 | //==========================================================================␊ |
| 112 | // Return the platform name for this hardware.␊ |
| 113 | //␊ |
| 114 | #ifndef BOOT1␊ |
| 115 | void␊ |
| 116 | getPlatformName(char *nameBuf)␊ |
| 117 | {␊ |
| 118 | strcpy(nameBuf, "ACPI");␊ |
| 119 | }␊ |
| 120 | #endif␊ |
| 121 | |
