/* $NetBSD: mcclock_mace.c,v 1.12 2003/10/25 16:15:07 chs Exp $ */ /* * Copyright (c) 2001 Antti Kantee. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. The name of the company nor the name of the author may be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY CAUASLITY LIMITED ``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 CAUSALITY LIMITED OR CONTRIBUTORS 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. */ /* * Copyright (c) 1998 Mark Brinicombe. * Copyright (c) 1998 Causality Limited. * All rights reserved. * * Written by Mark Brinicombe, Causality Limited * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Mark Brinicombe * for the NetBSD Project. * 4. The name of the company nor the name of the author may be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY CAUASLITY LIMITED ``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 CAUSALITY LIMITED OR CONTRIBUTORS 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. */ #include __KERNEL_RCSID(0, "$NetBSD: mcclock_mace.c,v 1.12 2003/10/25 16:15:07 chs Exp $"); #include #include #include #include #include #include #include #include #include #include struct mcclock_mace_softc { struct device sc_dev; bus_space_tag_t sc_st; bus_space_handle_t sc_sh; }; static int mcclock_mace_match(struct device *, struct cfdata *, void *); static void mcclock_mace_attach(struct device*, struct device *, void *); static void mcclock_mace_init(struct device *); static void mcclock_mace_get(struct device *, struct clock_ymdhms *); static void mcclock_mace_set(struct device *, struct clock_ymdhms *); unsigned int ds1687_read(void *arg, unsigned int addr); void ds1687_write(void *arg, unsigned int addr, unsigned int data); const struct clockfns mcclock_mace_clockfns = { mcclock_mace_init, mcclock_mace_get, mcclock_mace_set }; CFATTACH_DECL(mcclock_mace, sizeof(struct mcclock_mace_softc), mcclock_mace_match, mcclock_mace_attach, NULL, NULL); static int mcclock_mace_match(struct device *parent, struct cfdata *match, void *aux) { return 1; } void mcclock_mace_attach(struct device *parent, struct device *self, void *aux) { struct mcclock_mace_softc *sc = (void *)self; struct mace_attach_args *maa = aux; sc->sc_st = maa->maa_st; /* XXX should be bus_space_map() */ if (bus_space_subregion(maa->maa_st, maa->maa_sh, maa->maa_offset, 0, &sc->sc_sh)) panic("mcclock_mace_attach: couldn't map"); /* * We want a fixed format: 24-hour, BCD data, so just force the * RTC to this mode; if there was junk there we'll be able to * fix things up later when we discover the time read back is * no good. */ ds1687_write(sc, DS1687_CONTROLA, DS1687_DV1 | DS1687_BANK1); ds1687_write(sc, DS1687_CONTROLB, DS1687_24HRS); /* XXXrkb: init kickstart/wakeup stuff */ if (!(ds1687_read(sc, DS1687_CONTROLD) & DS1687_VRT)) printf(": lithium cell is dead, RTC unreliable"); printf("\n"); clockattach(&sc->sc_dev, &mcclock_mace_clockfns); } /* * We need to use the following two functions from * DS1687_PUT/GETTOD(). Hence the names. */ unsigned int ds1687_read(void *arg, unsigned int addr) { struct mcclock_mace_softc *sc = (struct mcclock_mace_softc *)arg; return (bus_space_read_1(sc->sc_st, sc->sc_sh, addr)); } void ds1687_write(void *arg, unsigned int addr, unsigned int data) { struct mcclock_mace_softc *sc = (struct mcclock_mace_softc *)arg; bus_space_write_1(sc->sc_st, sc->sc_sh, addr, data); } static void mcclock_mace_init(struct device *dev) { return; } static void mcclock_mace_get(struct device *dev, struct clock_ymdhms *dt) { struct mcclock_mace_softc *sc = (struct mcclock_mace_softc *)dev; ds1687_todregs regs; int s; s = splhigh(); DS1687_GETTOD(sc, ®s); splx(s); dt->dt_sec = FROMBCD(regs[DS1687_SOFT_SEC]); dt->dt_min = FROMBCD(regs[DS1687_SOFT_MIN]); dt->dt_hour = FROMBCD(regs[DS1687_SOFT_HOUR]); dt->dt_wday = FROMBCD(regs[DS1687_SOFT_DOW]); dt->dt_day = FROMBCD(regs[DS1687_SOFT_DOM]); dt->dt_mon = FROMBCD(regs[DS1687_SOFT_MONTH]); dt->dt_year = FROMBCD(regs[DS1687_SOFT_YEAR]) + (100 * FROMBCD(regs[DS1687_SOFT_CENTURY])); } static void mcclock_mace_set(struct device *dev, struct clock_ymdhms *dt) { struct mcclock_mace_softc *sc = (struct mcclock_mace_softc *)dev; ds1687_todregs regs; int s; memset(®s, 0, sizeof(regs)); regs[DS1687_SOFT_SEC] = TOBCD(dt->dt_sec); regs[DS1687_SOFT_MIN] = TOBCD(dt->dt_min); regs[DS1687_SOFT_HOUR] = TOBCD(dt->dt_hour); regs[DS1687_SOFT_DOW] = TOBCD(dt->dt_wday); regs[DS1687_SOFT_DOM] = TOBCD(dt->dt_day); regs[DS1687_SOFT_MONTH] = TOBCD(dt->dt_mon); regs[DS1687_SOFT_YEAR] = TOBCD(dt->dt_year % 100); regs[DS1687_SOFT_CENTURY] = TOBCD(dt->dt_year / 100); s = splhigh(); DS1687_PUTTOD(sc, ®s); splx(s); }