mc146818(4): remove obsolete driver
It's no longer used since 58aa35d429
and r357455 respectively.
This commit is contained in:
Marius Strobl
parent
5731987b71
commit
d141239c56
@ -2388,7 +2388,6 @@ lio_23xx_nic.bin.fw optional lio \
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dev/malo/if_malo.c optional malo
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dev/malo/if_malohal.c optional malo
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dev/malo/if_malo_pci.c optional malo pci
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dev/mc146818/mc146818.c optional mc146818
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dev/md/md.c optional md
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dev/mdio/mdio_if.m optional miiproxy | mdio
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dev/mdio/mdio.c optional miiproxy | mdio
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@ -1,290 +0,0 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2003 Izumi Tsutsui. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $NetBSD: mc146818.c,v 1.16 2008/05/14 13:29:28 tsutsui Exp $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* mc146818 and compatible time of day chip subroutines
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/clock.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <machine/bus.h>
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#include <dev/mc146818/mc146818reg.h>
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#include <dev/mc146818/mc146818var.h>
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#include "clock_if.h"
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static u_int mc146818_def_getcent(device_t);
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static void mc146818_def_setcent(device_t, u_int);
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int
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mc146818_attach(device_t dev)
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{
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struct mc146818_softc *sc;
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sc = device_get_softc(dev);
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if (mtx_initialized(&sc->sc_mtx) == 0) {
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device_printf(dev, "%s: mutex not initialized\n", __func__);
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return (ENXIO);
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}
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if (sc->sc_mcread == NULL)
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sc->sc_mcread = mc146818_def_read;
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if (sc->sc_mcwrite == NULL)
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sc->sc_mcwrite = mc146818_def_write;
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if (sc->sc_flag & MC146818_NO_CENT_ADJUST) {
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/*
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* Note that setting MC146818_NO_CENT_ADJUST means that
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* the century has to be stored in NVRAM somewhere.
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*/
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if (sc->sc_getcent == NULL)
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sc->sc_getcent = mc146818_def_getcent;
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if (sc->sc_setcent == NULL)
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sc->sc_setcent = mc146818_def_setcent;
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}
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mtx_lock_spin(&sc->sc_mtx);
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if (((*sc->sc_mcread)(dev, MC_REGD) & MC_REGD_VRT) == 0) {
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mtx_unlock_spin(&sc->sc_mtx);
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device_printf(dev, "%s: battery low\n", __func__);
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return (ENXIO);
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}
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sc->sc_rega = MC_BASE_32_KHz;
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(*sc->sc_mcwrite)(dev, MC_REGA, sc->sc_rega);
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sc->sc_regb = 0;
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sc->sc_regb |= (sc->sc_flag & MC146818_BCD) ? 0 : MC_REGB_BINARY;
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sc->sc_regb |= (sc->sc_flag & MC146818_12HR) ? 0 : MC_REGB_24HR;
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(*sc->sc_mcwrite)(dev, MC_REGB, sc->sc_regb);
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mtx_unlock_spin(&sc->sc_mtx);
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clock_register(dev, 1000000); /* 1 second resolution */
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return (0);
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}
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/*
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* Get time of day and convert it to a struct timespec.
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* Return 0 on success, an error number otherwise.
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*/
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int
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mc146818_gettime(device_t dev, struct timespec *ts)
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{
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struct mc146818_softc *sc;
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struct clocktime ct;
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int timeout, cent, year;
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sc = device_get_softc(dev);
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timeout = 1000000; /* XXX how long should we wait? */
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/*
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* If MC_REGA_UIP is 0 we have at least 244us before the next
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* update. If it's 1 an update is imminent.
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*/
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for (;;) {
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mtx_lock_spin(&sc->sc_mtx);
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if (((*sc->sc_mcread)(dev, MC_REGA) & MC_REGA_UIP) == 0)
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break;
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mtx_unlock_spin(&sc->sc_mtx);
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if (--timeout < 0) {
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device_printf(dev, "%s: timeout\n", __func__);
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return (EBUSY);
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}
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}
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#define FROMREG(x) ((sc->sc_flag & MC146818_BCD) ? FROMBCD(x) : (x))
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ct.nsec = 0;
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ct.sec = FROMREG((*sc->sc_mcread)(dev, MC_SEC));
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ct.min = FROMREG((*sc->sc_mcread)(dev, MC_MIN));
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ct.hour = FROMREG((*sc->sc_mcread)(dev, MC_HOUR));
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/* Map dow from 1 - 7 to 0 - 6. */
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ct.dow = FROMREG((*sc->sc_mcread)(dev, MC_DOW)) - 1;
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ct.day = FROMREG((*sc->sc_mcread)(dev, MC_DOM));
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ct.mon = FROMREG((*sc->sc_mcread)(dev, MC_MONTH));
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year = FROMREG((*sc->sc_mcread)(dev, MC_YEAR));
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year += sc->sc_year0;
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if (sc->sc_flag & MC146818_NO_CENT_ADJUST) {
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cent = (*sc->sc_getcent)(dev);
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year += cent * 100;
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} else if (year < POSIX_BASE_YEAR)
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year += 100;
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mtx_unlock_spin(&sc->sc_mtx);
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ct.year = year;
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return (clock_ct_to_ts(&ct, ts));
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}
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#ifdef notyet
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int
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mc146818_getsecs(device_t dev, int *secp)
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{
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struct mc146818_softc *sc;
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int sec, timeout;
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sc = device_get_softc(dev);
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timeout = 1000000; /* XXX how long should we wait? */
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for (;;) {
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mtx_lock_spin(&sc->sc_mtx);
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if (((*sc->sc_mcread)(dev, MC_REGA) & MC_REGA_UIP) == 0) {
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sec = FROMREG((*sc->sc_mcread)(dev, MC_SEC));
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mtx_unlock_spin(&sc->sc_mtx);
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break;
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}
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mtx_unlock_spin(&sc->sc_mtx);
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if (--timeout == 0) {
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device_printf(dev, "%s: timeout\n", __func__);
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return (EBUSY);
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}
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}
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#undef FROMREG
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*secp = sec;
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return (0);
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}
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#endif
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/*
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* Set the time of day clock based on the value of the struct timespec arg.
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* Return 0 on success, an error number otherwise.
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*/
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int
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mc146818_settime(device_t dev, struct timespec *ts)
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{
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struct mc146818_softc *sc;
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struct clocktime ct;
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int cent, year;
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sc = device_get_softc(dev);
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/* Accuracy is only one second. */
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if (ts->tv_nsec >= 500000000)
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ts->tv_sec++;
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ts->tv_nsec = 0;
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clock_ts_to_ct(ts, &ct);
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mtx_lock_spin(&sc->sc_mtx);
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/* Disable RTC updates and interrupts (if enabled). */
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(*sc->sc_mcwrite)(dev, MC_REGB,
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((sc->sc_regb & (MC_REGB_BINARY | MC_REGB_24HR)) | MC_REGB_SET));
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#define TOREG(x) ((sc->sc_flag & MC146818_BCD) ? TOBCD(x) : (x))
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(*sc->sc_mcwrite)(dev, MC_SEC, TOREG(ct.sec));
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(*sc->sc_mcwrite)(dev, MC_MIN, TOREG(ct.min));
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(*sc->sc_mcwrite)(dev, MC_HOUR, TOREG(ct.hour));
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/* Map dow from 0 - 6 to 1 - 7. */
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(*sc->sc_mcwrite)(dev, MC_DOW, TOREG(ct.dow + 1));
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(*sc->sc_mcwrite)(dev, MC_DOM, TOREG(ct.day));
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(*sc->sc_mcwrite)(dev, MC_MONTH, TOREG(ct.mon));
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year = ct.year - sc->sc_year0;
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if (sc->sc_flag & MC146818_NO_CENT_ADJUST) {
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cent = year / 100;
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(*sc->sc_setcent)(dev, cent);
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year -= cent * 100;
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} else if (year > 99)
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year -= 100;
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(*sc->sc_mcwrite)(dev, MC_YEAR, TOREG(year));
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/* Reenable RTC updates and interrupts. */
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(*sc->sc_mcwrite)(dev, MC_REGB, sc->sc_regb);
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mtx_unlock_spin(&sc->sc_mtx);
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#undef TOREG
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return (0);
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}
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#define MC_ADDR 0
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#define MC_DATA 1
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u_int
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mc146818_def_read(device_t dev, u_int reg)
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{
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struct mc146818_softc *sc;
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sc = device_get_softc(dev);
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bus_space_write_1(sc->sc_bst, sc->sc_bsh, MC_ADDR, reg);
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return (bus_space_read_1(sc->sc_bst, sc->sc_bsh, MC_DATA));
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}
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void
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mc146818_def_write(device_t dev, u_int reg, u_int val)
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{
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struct mc146818_softc *sc;
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sc = device_get_softc(dev);
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bus_space_write_1(sc->sc_bst, sc->sc_bsh, MC_ADDR, reg);
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bus_space_write_1(sc->sc_bst, sc->sc_bsh, MC_DATA, val);
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}
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#undef MC_ADDR
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#undef MC_DATA
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/*
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* Looks like it's common even across platforms to store the century at
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* 0x32 in the NVRAM of the mc146818.
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*/
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#define MC_CENT 0x32
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static u_int
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mc146818_def_getcent(device_t dev)
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{
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struct mc146818_softc *sc;
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sc = device_get_softc(dev);
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return ((*sc->sc_mcread)(dev, MC_CENT));
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}
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static void
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mc146818_def_setcent(device_t dev, u_int cent)
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{
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struct mc146818_softc *sc;
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sc = device_get_softc(dev);
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(*sc->sc_mcwrite)(dev, MC_CENT, cent);
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}
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#undef MC_CENT
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@ -1,150 +0,0 @@
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/*-
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* SPDX-License-Identifier: MIT-CMU
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*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $NetBSD: mc146818reg.h,v 1.9 2006/03/08 23:46:25 lukem Exp $
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*
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* $FreeBSD$
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*/
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/*
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* Definitions for the Motorola MC146818A Real Time Clock.
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* They also apply for the (compatible) Dallas Semiconductor DS1287A RTC.
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*
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* Though there are undoubtedly other (better) sources, this material was
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* culled from the DEC "KN121 System Module Programmer's Reference
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* Information."
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*
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* The MC146818A has 16 registers. The first 10 contain time-of-year
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* and alarm data. The rest contain various control and status bits.
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*
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* To read or write the registers, one writes the register number to
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* the RTC's control port, then either reads from or writes the new
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* data to the RTC's data port. Since the locations of these ports
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* and the method used to access them can be machine-dependent, the
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* low-level details of reading and writing the RTC's registers are
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* handled by machine-specific functions.
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*
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* The time-of-year and alarm data can be expressed in either binary
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* or BCD, and they are selected by a bit in register B.
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*
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* The "hour" time-of-year and alarm fields can either be expressed in
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* AM/PM format, or in 24-hour format. If AM/PM format is chosen, the
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* hour fields can have the values: 1-12 and 81-92 (the latter being
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* PM). If the 24-hour format is chosen, they can have the values
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* 0-24. The hour format is selectable by a bit in register B.
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* (XXX IS AM/PM MODE DESCRIPTION CORRECT?)
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*
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* It is assumed the if systems are going to use BCD (rather than
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* binary) mode, or AM/PM hour format, they'll do the appropriate
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* conversions in machine-dependent code. Also, if the clock is
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* switched between BCD and binary mode, or between AM/PM mode and
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* 24-hour mode, the time-of-day and alarm registers are NOT
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* automatically reset; they must be reprogrammed with correct values.
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*/
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/*
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* The registers, and the bits within each register.
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*/
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#define MC_SEC 0x0 /* Time of year: seconds (0-59) */
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#define MC_ASEC 0x1 /* Alarm: seconds */
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#define MC_MIN 0x2 /* Time of year: minutes (0-59) */
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#define MC_AMIN 0x3 /* Alarm: minutes */
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#define MC_HOUR 0x4 /* Time of year: hour (see above) */
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#define MC_AHOUR 0x5 /* Alarm: hour */
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#define MC_DOW 0x6 /* Time of year: day of week (1-7) */
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#define MC_DOM 0x7 /* Time of year: day of month (1-31) */
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#define MC_MONTH 0x8 /* Time of year: month (1-12) */
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#define MC_YEAR 0x9 /* Time of year: year in century (0-99) */
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#define MC_REGA 0xa /* Control register A */
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#define MC_REGA_RSMASK 0x0f /* Interrupt rate select mask (see below) */
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#define MC_REGA_DVMASK 0x70 /* Divisor select mask (see below) */
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#define MC_REGA_DV0 0x10 /* Divisor 0 */
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#define MC_REGA_DV1 0x20 /* Divisor 1 */
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#define MC_REGA_DV2 0x40 /* Divisor 2 */
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#define MC_REGA_UIP 0x80 /* Update in progress; read only. */
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#define MC_REGB 0xb /* Control register B */
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#define MC_REGB_DSE 0x01 /* Daylight Savings Enable */
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#define MC_REGB_24HR 0x02 /* 24-hour mode (AM/PM mode when clear) */
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#define MC_REGB_BINARY 0x04 /* Binary mode (BCD mode when clear) */
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#define MC_REGB_SQWE 0x08 /* Square Wave Enable */
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#define MC_REGB_UIE 0x10 /* Update End interrupt enable */
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#define MC_REGB_AIE 0x20 /* Alarm interrupt enable */
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#define MC_REGB_PIE 0x40 /* Periodic interrupt enable */
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#define MC_REGB_SET 0x80 /* Allow time to be set; stops updates */
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#define MC_REGC 0xc /* Control register C */
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/* MC_REGC_UNUSED 0x0f UNUSED */
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#define MC_REGC_UF 0x10 /* Update End interrupt flag */
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#define MC_REGC_AF 0x20 /* Alarm interrupt flag */
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#define MC_REGC_PF 0x40 /* Periodic interrupt flag */
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#define MC_REGC_IRQF 0x80 /* Interrupt request pending flag */
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#define MC_REGD 0xd /* Control register D */
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/* MC_REGD_UNUSED 0x7f UNUSED */
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#define MC_REGD_VRT 0x80 /* Valid RAM and Time bit */
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#define MC_NREGS 0xe /* 14 registers; CMOS follows */
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#define MC_NTODREGS 0xa /* 10 of those regs are for TOD and alarm */
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#define MC_NVRAM_START 0xe /* start of NVRAM: offset 14 */
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#define MC_NVRAM_SIZE 50 /* 50 bytes of NVRAM */
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/*
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* Periodic Interrupt Rate Select constants (Control register A)
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*/
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#define MC_RATE_NONE 0x0 /* No periodic interrupt */
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#define MC_RATE_1 0x1 /* 256 Hz if MC_BASE_32_KHz, else 32768 Hz */
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#define MC_RATE_2 0x2 /* 128 Hz if MC_BASE_32_KHz, else 16384 Hz */
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#define MC_RATE_8192_Hz 0x3 /* 122.070 us period */
|
||||
#define MC_RATE_4096_Hz 0x4 /* 244.141 us period */
|
||||
#define MC_RATE_2048_Hz 0x5 /* 488.281 us period */
|
||||
#define MC_RATE_1024_Hz 0x6 /* 976.562 us period */
|
||||
#define MC_RATE_512_Hz 0x7 /* 1.953125 ms period */
|
||||
#define MC_RATE_256_Hz 0x8 /* 3.90625 ms period */
|
||||
#define MC_RATE_128_Hz 0x9 /* 7.8125 ms period */
|
||||
#define MC_RATE_64_Hz 0xa /* 15.625 ms period */
|
||||
#define MC_RATE_32_Hz 0xb /* 31.25 ms period */
|
||||
#define MC_RATE_16_Hz 0xc /* 62.5 ms period */
|
||||
#define MC_RATE_8_Hz 0xd /* 125 ms period */
|
||||
#define MC_RATE_4_Hz 0xe /* 250 ms period */
|
||||
#define MC_RATE_2_Hz 0xf /* 500 ms period */
|
||||
|
||||
/*
|
||||
* Time base (divisor select) constants (Control register A)
|
||||
*/
|
||||
#define MC_BASE_4_MHz 0x00 /* 4 MHz crystal */
|
||||
#define MC_BASE_1_MHz MC_REGA_DV0 /* 1 MHz crystal */
|
||||
#define MC_BASE_32_KHz MC_REGA_DV1 /* 32 KHz crystal */
|
||||
#define MC_BASE_NONE (MC_REGA_DV2 | MC_REGA_DV1) /* actually also resets */
|
||||
#define MC_BASE_RESET (MC_REGA_DV2 | MC_REGA_DV1 | MC_REGA_DV0)
|
||||
@ -1,67 +0,0 @@
|
||||
/*-
|
||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||
*
|
||||
* Copyright (c) 2003 Izumi Tsutsui. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* $NetBSD: mc146818var.h,v 1.7 2008/05/14 13:29:29 tsutsui Exp $
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
struct mc146818_softc {
|
||||
bus_space_tag_t sc_bst; /* bus space tag */
|
||||
bus_space_handle_t sc_bsh; /* bus space handle */
|
||||
|
||||
struct mtx sc_mtx; /* hardware mutex */
|
||||
|
||||
u_char sc_rega; /* register A */
|
||||
u_char sc_regb; /* register B */
|
||||
|
||||
u_int sc_year0; /* year counter offset */
|
||||
|
||||
u_int sc_flag; /* MD flags */
|
||||
#define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */
|
||||
#define MC146818_BCD 0x0002 /* use BCD mode */
|
||||
#define MC146818_12HR 0x0004 /* use AM/PM mode */
|
||||
|
||||
/* MD chip register read/write functions */
|
||||
u_int (*sc_mcread)(device_t dev, u_int reg);
|
||||
void (*sc_mcwrite)(device_t dev, u_int reg, u_int val);
|
||||
/* MD century get/set functions */
|
||||
u_int (*sc_getcent)(device_t dev);
|
||||
void (*sc_setcent)(device_t dev, u_int cent);
|
||||
};
|
||||
|
||||
/* Default read/write functions */
|
||||
u_int mc146818_def_read(device_t dev, u_int reg);
|
||||
void mc146818_def_write(device_t dev, u_int reg, u_int val);
|
||||
|
||||
/* Chip attach function */
|
||||
int mc146818_attach(device_t);
|
||||
|
||||
/* Methods for the clock interface */
|
||||
#ifdef notyet
|
||||
int mc146818_getsecs(device_t dev, int *secp);
|
||||
#endif
|
||||
int mc146818_gettime(device_t dev, struct timespec *ts);
|
||||
int mc146818_settime(device_t dev, struct timespec *ts);
|
||||
@ -1,21 +0,0 @@
|
||||
# Doxyfile 1.5.2
|
||||
|
||||
# $FreeBSD$
|
||||
|
||||
#---------------------------------------------------------------------------
|
||||
# Project related configuration options
|
||||
#---------------------------------------------------------------------------
|
||||
PROJECT_NAME = "FreeBSD kernel MC146818 device code"
|
||||
OUTPUT_DIRECTORY = $(DOXYGEN_DEST_PATH)/dev_mc146818/
|
||||
EXTRACT_ALL = YES # for undocumented src, no warnings enabled
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the input files
|
||||
#---------------------------------------------------------------------------
|
||||
INPUT = $(DOXYGEN_SRC_PATH)/dev/mc146818/ \
|
||||
$(NOTREVIEWED)
|
||||
|
||||
GENERATE_TAGFILE = dev_mc146818/dev_mc146818.tag
|
||||
|
||||
@INCLUDE_PATH = $(DOXYGEN_INCLUDE_PATH)
|
||||
@INCLUDE = common-Doxyfile
|
||||
|
||||
Loading…
Reference in New Issue
Block a user