atrtc.c (1390) | atrtc.c (1407) |
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1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz and Don Ahn. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)clock.c 7.2 (Berkeley) 5/12/91 | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz and Don Ahn. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)clock.c 7.2 (Berkeley) 5/12/91 |
37 * $Id: clock.c,v 1.6 1994/02/06 22:48:13 davidg Exp $ | 37 * $Id: clock.c,v 1.7 1994/04/21 14:19:16 sos Exp $ |
38 */ 39 40/* 41 * Primitive clock interrupt routines. 42 */ 43#include "param.h" 44#include "systm.h" 45#include "time.h" --- 34 unchanged lines hidden (view full) --- 80 prescale = 0; 81 } 82} 83 84 85int 86acquire_timer0(int rate, void (*function)() ) 87{ | 38 */ 39 40/* 41 * Primitive clock interrupt routines. 42 */ 43#include "param.h" 44#include "systm.h" 45#include "time.h" --- 34 unchanged lines hidden (view full) --- 80 prescale = 0; 81 } 82} 83 84 85int 86acquire_timer0(int rate, void (*function)() ) 87{ |
88#ifndef INACCURATE_MICROTIME_IS_OK 89 return -1; 90#else |
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88 if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */ 89 return -1; 90 timer0_in_use = 1; 91 timer0_rate = rate; 92 prescale = 0; 93 hardclock_prescale = rate/hz; 94 outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT); 95 outb(TIMER_CNTR0, TIMER_DIV(rate)%256); 96 outb(TIMER_CNTR0, TIMER_DIV(rate)/256); 97 if (function) 98 timer_func = function; 99 return 0; | 91 if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */ 92 return -1; 93 timer0_in_use = 1; 94 timer0_rate = rate; 95 prescale = 0; 96 hardclock_prescale = rate/hz; 97 outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT); 98 outb(TIMER_CNTR0, TIMER_DIV(rate)%256); 99 outb(TIMER_CNTR0, TIMER_DIV(rate)/256); 100 if (function) 101 timer_func = function; 102 return 0; |
103#endif |
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100} 101 102 103int 104acquire_timer2(int mode) 105{ 106 if (timer2_in_use) 107 return -1; --- 329 unchanged lines hidden --- | 104} 105 106 107int 108acquire_timer2(int mode) 109{ 110 if (timer2_in_use) 111 return -1; --- 329 unchanged lines hidden --- |