Flesh out inittodr() and resettodr().
This commit is contained in:
thorpej
parent
6d7e3e1b0d
commit
ca601a7747
@ -1,4 +1,4 @@
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/* $NetBSD: becc_timer.c,v 1.3 2003/07/15 00:24:52 lukem Exp $ */
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/* $NetBSD: becc_timer.c,v 1.4 2003/07/26 05:51:11 thorpej Exp $ */
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/*
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* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
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@ -40,13 +40,15 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: becc_timer.c,v 1.3 2003/07/15 00:24:52 lukem Exp $");
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__KERNEL_RCSID(0, "$NetBSD: becc_timer.c,v 1.4 2003/07/26 05:51:11 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/time.h>
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#include <dev/clock_subr.h>
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#include <machine/bus.h>
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#include <arm/cpufunc.h>
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@ -264,17 +266,73 @@ delay(u_int n)
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}
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}
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todr_chip_handle_t todr_handle;
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/*
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* todr_attach:
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*
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* Set the specified time-of-day register as the system real-time clock.
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*/
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void
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todr_attach(todr_chip_handle_t todr)
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{
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if (todr_handle)
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panic("todr_attach: rtc already configured");
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}
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/*
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* inittodr:
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*
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* Initialize time from the time-of-day register.
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*/
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#define MINYEAR 2003 /* minimum plausible year */
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void
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inittodr(time_t base)
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{
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time_t deltat;
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int badbase;
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if (base < (MINYEAR - 1970) * SECYR) {
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printf("WARNING: preposterous time in file system");
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/* read the system clock anyway */
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base = (MINYEAR - 1970) * SECYR;
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badbase = 1;
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} else
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badbase = 0;
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if (todr_handle == NULL ||
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todr_gettime(todr_handle, (struct timeval *)&time) != 0 ||
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time.tv_sec == 0) {
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/*
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* Believe the time in the file system for lack of
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* anything better, resetting the TODR.
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*/
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time.tv_sec = base;
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time.tv_usec = 0;
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if (todr_handle != NULL && !badbase) {
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printf("WARNING: preposterous clock chip time\n");
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resettodr();
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}
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goto bad;
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}
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if (!badbase) {
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/*
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* See if we tained/lost two or more days; if
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* so, assume something is amiss.
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*/
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deltat = time.tv_sec - base;
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if (deltat < 0)
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deltat = -deltat;
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if (deltat < 2 * SECDAY)
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return; /* all is well */
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printf("WARNING: clock %s %ld days\n",
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time.tv_sec < base ? "lost" : "gained",
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(long)deltat / SECDAY);
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}
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bad:
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printf("WARNING: CHECK AND RESET THE DATE!\n");
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}
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/*
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@ -285,6 +343,13 @@ inittodr(time_t base)
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void
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resettodr(void)
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{
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if (time.tv_sec == 0)
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return;
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if (todr_handle != NULL &&
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todr_settime(todr_handle, (struct timeval *)&time) != 0)
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printf("resettodr: failed to set time\n");
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}
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/*
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@ -1,4 +1,4 @@
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/* $NetBSD: i80321_timer.c,v 1.5 2003/07/15 00:24:54 lukem Exp $ */
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/* $NetBSD: i80321_timer.c,v 1.6 2003/07/26 05:51:11 thorpej Exp $ */
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/*
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* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
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@ -40,7 +40,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: i80321_timer.c,v 1.5 2003/07/15 00:24:54 lukem Exp $");
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__KERNEL_RCSID(0, "$NetBSD: i80321_timer.c,v 1.6 2003/07/26 05:51:11 thorpej Exp $");
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#include "opt_perfctrs.h"
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@ -49,6 +49,8 @@ __KERNEL_RCSID(0, "$NetBSD: i80321_timer.c,v 1.5 2003/07/15 00:24:54 lukem Exp $
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#include <sys/kernel.h>
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#include <sys/time.h>
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#include <dev/clock_subr.h>
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#include <machine/bus.h>
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#include <arm/cpufunc.h>
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@ -315,17 +317,73 @@ delay(u_int n)
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}
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}
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todr_chip_handle_t todr_handle;
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/*
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* todr_attach:
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*
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* Set the specified time-of-day register as the system real-time clock.
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*/
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void
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todr_attach(todr_chip_handle_t todr)
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{
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if (todr_handle)
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panic("todr_attach: rtc already configured");
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}
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/*
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* inittodr:
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*
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* Initialize time from the time-of-day register.
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*/
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#define MINYEAR 2003 /* minimum plausible year */
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void
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inittodr(time_t base)
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{
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time_t deltat;
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int badbase;
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if (base < (MINYEAR - 1970) * SECYR) {
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printf("WARNING: preposterous time in file system");
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/* read the system clock anyway */
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base = (MINYEAR - 1970) * SECYR;
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badbase = 1;
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} else
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badbase = 0;
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if (todr_handle == NULL ||
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todr_gettime(todr_handle, (struct timeval *)&time) != 0 ||
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time.tv_sec == 0) {
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/*
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* Believe the time in the file system for lack of
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* anything better, resetting the TODR.
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*/
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time.tv_sec = base;
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time.tv_usec = 0;
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if (todr_handle != NULL && !badbase) {
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printf("WARNING: preposterous clock chip time\n");
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resettodr();
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}
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goto bad;
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}
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if (!badbase) {
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/*
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* See if we tained/lost two or more days; if
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* so, assume something is amiss.
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*/
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deltat = time.tv_sec - base;
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if (deltat < 0)
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deltat = -deltat;
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if (deltat < 2 * SECDAY)
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return; /* all is well */
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printf("WARNING: clock %s %ld days\n",
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time.tv_sec < base ? "lost" : "gained",
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(long)deltat / SECDAY);
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}
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bad:
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printf("WARNING: CHECK AND RESET THE DATE!\n");
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}
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/*
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@ -336,6 +394,13 @@ inittodr(time_t base)
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void
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resettodr(void)
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{
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if (time.tv_sec == 0)
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return;
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if (todr_handle != NULL &&
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todr_settime(todr_handle, (struct timeval *)&time) != 0)
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printf("resettodr: failed to set time\n");
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}
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/*
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@ -1,4 +1,4 @@
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/* $NetBSD: ixp425_timer.c,v 1.1 2003/05/23 00:57:26 ichiro Exp $ */
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/* $NetBSD: ixp425_timer.c,v 1.2 2003/07/26 05:51:11 thorpej Exp $ */
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/*
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* Copyright (c) 2003
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@ -34,7 +34,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ixp425_timer.c,v 1.1 2003/05/23 00:57:26 ichiro Exp $");
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__KERNEL_RCSID(0, "$NetBSD: ixp425_timer.c,v 1.2 2003/07/26 05:51:11 thorpej Exp $");
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#include "opt_perfctrs.h"
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@ -45,6 +45,8 @@ __KERNEL_RCSID(0, "$NetBSD: ixp425_timer.c,v 1.1 2003/05/23 00:57:26 ichiro Exp
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#include <sys/time.h>
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#include <sys/device.h>
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#include <dev/clock_subr.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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@ -282,17 +284,73 @@ delay(u_int n)
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}
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}
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todr_chip_handle_t todr_handle;
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/*
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* todr_attach:
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*
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* Set the specified time-of-day register as the system real-time clock.
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*/
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void
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todr_attach(todr_chip_handle_t todr)
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{
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if (todr_handle)
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panic("todr_attach: rtc already configured");
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}
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/*
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* inittodr:
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*
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* Initialize time from the time-of-day register.
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*/
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#define MINYEAR 2003 /* minimum plausible year */
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void
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inittodr(time_t base)
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{
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time_t deltat;
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int badbase;
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if (base < (MINYEAR - 1970) * SECYR) {
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printf("WARNING: preposterous time in file system");
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/* read the system clock anyway */
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base = (MINYEAR - 1970) * SECYR;
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badbase = 1;
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} else
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badbase = 0;
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if (todr_handle == NULL ||
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todr_gettime(todr_handle, (struct timeval *)&time) != 0 ||
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time.tv_sec == 0) {
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/*
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* Believe the time in the file system for lack of
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* anything better, resetting the TODR.
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*/
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time.tv_sec = base;
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time.tv_usec = 0;
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if (todr_handle != NULL && !badbase) {
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printf("WARNING: preposterous clock chip time\n");
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resettodr();
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}
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goto bad;
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}
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if (!badbase) {
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/*
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* See if we tained/lost two or more days; if
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* so, assume something is amiss.
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*/
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deltat = time.tv_sec - base;
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if (deltat < 0)
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deltat = -deltat;
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if (deltat < 2 * SECDAY)
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return; /* all is well */
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printf("WARNING: clock %s %ld days\n",
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time.tv_sec < base ? "lost" : "gained",
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(long)deltat / SECDAY);
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}
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bad:
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printf("WARNING: CHECK AND RESET THE DATE!\n");
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}
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/*
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@ -303,6 +361,13 @@ inittodr(time_t base)
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void
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resettodr(void)
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{
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if (time.tv_sec == 0)
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return;
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if (todr_handle != NULL &&
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todr_settime(todr_handle, (struct timeval *)&time) != 0)
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printf("resettodr: failed to set time\n");
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}
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/*
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@ -1,4 +1,4 @@
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/* $NetBSD: iq80310_timer.c,v 1.12 2003/07/15 00:25:03 lukem Exp $ */
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/* $NetBSD: iq80310_timer.c,v 1.13 2003/07/26 05:55:03 thorpej Exp $ */
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/*
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* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
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@ -47,13 +47,15 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: iq80310_timer.c,v 1.12 2003/07/15 00:25:03 lukem Exp $");
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__KERNEL_RCSID(0, "$NetBSD: iq80310_timer.c,v 1.13 2003/07/26 05:55:03 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/time.h>
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#include <dev/clock_subr.h>
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#include <machine/bus.h>
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#include <arm/cpufunc.h>
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@ -317,17 +319,73 @@ delay(u_int n)
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}
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}
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todr_chip_handle_t todr_handle;
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/*
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* todr_attach:
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*
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* Set the specified time-of-day register as the system real-time clock.
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*/
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void
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todr_attach(todr_chip_handle_t todr)
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{
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if (todr_handle)
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panic("todr_attach: rtc already configured");
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}
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/*
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* inittodr:
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*
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* Initialize time from the time-of-day register.
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*/
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#define MINYEAR 2003 /* minimum plausible year */
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void
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inittodr(time_t base)
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{
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time_t deltat;
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int badbase;
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if (base < (MINYEAR - 1970) * SECYR) {
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printf("WARNING: preposterous time in file system");
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/* read the system clock anyway */
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base = (MINYEAR - 1970) * SECYR;
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badbase = 1;
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} else
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badbase = 0;
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if (todr_handle == NULL ||
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todr_gettime(todr_handle, (struct timeval *)&time) != 0 ||
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time.tv_sec == 0) {
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/*
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* Believe the time in the file system for lack of
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* anything better, resetting the TODR.
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*/
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time.tv_sec = base;
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time.tv_usec = 0;
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if (todr_handle != NULL && !badbase) {
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printf("WARNING: preposterous clock chip time\n");
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resettodr();
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}
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goto bad;
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}
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if (!badbase) {
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/*
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* See if we tained/lost two or more days; if
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* so, assume something is amiss.
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*/
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deltat = time.tv_sec - base;
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if (deltat < 0)
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deltat = -deltat;
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if (deltat < 2 * SECDAY)
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return; /* all is well */
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printf("WARNING: clock %s %ld days\n",
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time.tv_sec < base ? "lost" : "gained",
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(long)deltat / SECDAY);
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}
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bad:
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printf("WARNING: CHECK AND RESET THE DATE!\n");
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}
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/*
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@ -338,6 +396,13 @@ inittodr(time_t base)
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void
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resettodr(void)
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{
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if (time.tv_sec == 0)
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return;
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if (todr_handle != NULL &&
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todr_settime(todr_handle, (struct timeval *)&time) != 0)
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printf("resettodr: failed to set time\n");
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}
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/*
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