Return to timer_inline.h CVS log

Up to [Apple Darwin 0.x] / kernel / machdep / i386

Annotation of kernel/machdep/i386/timer_inline.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 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 1.1 (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: /*
        !            26:  * Copyright (c) 1992 NeXT Computer, Inc.
        !            27:  *
        !            28:  * Timer (PIT) access routines.
        !            29:  *
        !            30:  * HISTORY
        !            31:  *
        !            32:  * 24 March 1992 ? at NeXT
        !            33:  *     Created.
        !            34:  */
        !            35:  
        !            36: #import <machdep/i386/timer.h>
        !            37: #import <machdep/i386/io_inline.h>
        !            38: 
        !            39: #define timer_get_ctl  _timer_get_ctl_
        !            40: static inline timer_ctl_reg_t
        !            41: _timer_get_ctl_()
        !            42: {
        !            43:     union {
        !            44:        timer_ctl_reg_t reg;
        !            45:        unsigned char   iodata;
        !            46:     } temp;
        !            47:     
        !            48:     temp.iodata = inb(TIMER_CTL_PORT);
        !            49:     
        !            50:     return (temp.reg);
        !            51: }
        !            52: 
        !            53: #define timer_set_ctl  _timer_set_ctl_
        !            54: static inline void
        !            55: _timer_set_ctl_(reg)
        !            56: timer_ctl_reg_t        reg;
        !            57: {
        !            58:     union {
        !            59:        timer_ctl_reg_t reg;
        !            60:        unsigned char   iodata;
        !            61:     } temp;
        !            62: 
        !            63:     temp.reg = reg;
        !            64:     
        !            65:     outb(TIMER_CTL_PORT, temp.iodata);
        !            66: }
        !            67: 
        !            68: #define timer_latch    _timer_latch_
        !            69: static inline void
        !            70: _timer_latch_(sel)
        !            71: int            sel;
        !            72: {
        !            73:     timer_ctl_reg_t    reg;
        !            74:     
        !            75:     reg = (timer_ctl_reg_t){ 0 };
        !            76:     reg.sel = sel;
        !            77:     
        !            78:     timer_set_ctl(reg);
        !            79: }
        !            80: 
        !            81: #define TIMER_CNT_PORT(n)      \
        !            82:     _timer_cnt_port_[(n)]
        !            83: static const int       _timer_cnt_port_[] =
        !            84:        { TIMER_CNT0_PORT, TIMER_CNT1_PORT, TIMER_CNT2_PORT };
        !            85: 
        !            86: #define timer_read     _timer_read_
        !            87: static inline timer_cnt_val_t
        !            88: _timer_read_(sel)
        !            89: int            sel;
        !            90: {
        !            91:     union {
        !            92:        timer_cnt_val_t val;
        !            93:        unsigned char   iodata[2];
        !            94:     } temp;
        !            95: 
        !            96:     temp.iodata[0] = inb(TIMER_CNT_PORT(sel));
        !            97:     temp.iodata[1] = inb(TIMER_CNT_PORT(sel));
        !            98:     
        !            99:     return (temp.val);
        !           100: }
        !           101: 
        !           102: #define timer_write    _timer_write_
        !           103: static inline void
        !           104: _timer_write_(sel, val)
        !           105: int            sel;
        !           106: timer_cnt_val_t        val;
        !           107: {
        !           108:     union {
        !           109:        timer_cnt_val_t val;
        !           110:        unsigned char   iodata[2];
        !           111:     } temp;
        !           112:     
        !           113:     temp.val = val;
        !           114:     
        !           115:     outb(TIMER_CNT_PORT(sel), temp.iodata[0]);
        !           116:     outb(TIMER_CNT_PORT(sel), temp.iodata[1]);
        !           117: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.