diff options
Diffstat (limited to 'sys/arch/sgi/hpc/dsclock.c')
| -rw-r--r-- | sys/arch/sgi/hpc/dsclock.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/sys/arch/sgi/hpc/dsclock.c b/sys/arch/sgi/hpc/dsclock.c deleted file mode 100644 index 38d07c30a3c..00000000000 --- a/sys/arch/sgi/hpc/dsclock.c +++ /dev/null @@ -1,226 +0,0 @@ -/* $OpenBSD: dsclock.c,v 1.5 2020/05/21 01:50:42 visa Exp $ */ -/* $NetBSD: dsclock.c,v 1.5 2011/07/01 18:53:46 dyoung Exp $ */ - -/* - * Copyright (c) 2001 Rafal K. Boni - * Copyright (c) 2001 Christopher Sekiya - * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. - * All rights reserved. - * - * Portions of this code are derived from software contributed to The - * NetBSD Foundation by Jason R. Thorpe of the Numerical Aerospace - * Simulation Facility, NASA Ames Research Center. - * - * 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. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * 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. - */ - - -#include <sys/param.h> -#include <sys/kernel.h> -#include <sys/systm.h> -#include <sys/device.h> - -#include <machine/bus.h> - -#include <dev/clock_subr.h> -#include <dev/ic/ds1286reg.h> -#include <sgi/hpc/hpcvar.h> -#include <sgi/sgi/ip22.h> - -struct dsclock_softc { - struct device sc_dev; - struct todr_chip_handle sc_todr; - - bus_space_tag_t sc_iot; - bus_space_handle_t sc_ioh; - - uint sc_base; -}; - -int dsclock_match(struct device *, void *, void *); -void dsclock_attach(struct device *, struct device *, void *); - -struct cfdriver dsclock_cd = { - NULL, "dsclock", DV_DULL -}; - -const struct cfattach dsclock_ca = { - sizeof(struct dsclock_softc), dsclock_match, dsclock_attach -}; - -#define ds1286_read(sc,r) \ - bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, ((r) << 2) + 3) -#define ds1286_write(sc,r,v) \ - bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, ((r) << 2) + 3, (v)) - -static inline int frombcd(int); -static inline int tobcd(int); - -static inline int -frombcd(int x) -{ - return (x >> 4) * 10 + (x & 0xf); -} -static inline int -tobcd(int x) -{ - return (x / 10 * 16) + (x % 10); -} - -int dsclock_gettime(struct todr_chip_handle *, struct timeval *); -int dsclock_settime(struct todr_chip_handle *, struct timeval *); - -int -dsclock_match(struct device *parent, void *vcf, void *aux) -{ - struct hpc_attach_args *haa = aux; - - if (strcmp(haa->ha_name, dsclock_cd.cd_name) != 0) - return 0; - - return 1; -} - -void -dsclock_attach(struct device *parent, struct device *self, void *aux) -{ - struct dsclock_softc *sc = (void *)self; - struct hpc_attach_args *haa = aux; - ds1286_todregs regs; - - sc->sc_iot = haa->ha_st; - if (bus_space_subregion(haa->ha_st, haa->ha_sh, haa->ha_devoff, - 4 * 8192, &sc->sc_ioh) != 0) { - printf(": can't map registers\n"); - return; - } - - printf("\n"); - - /* - * Try and figure out what year the chip time is relative to. - * Different Indy PROM versions appear to use different base: - * PROM Monitor SGI Version 5.1 Rev B3 IP24 Sep 17, 1993 (BE) - * uses 1970, while - * PROM Monitor SGI Version 5.3 Rev B10 R4X00/R5000 IP24 Feb 12, 1996 (BE) - * uses 1940. - */ - - DS1286_GETTOD(sc, ®s); - sc->sc_base = bios_year - frombcd(regs[DS1286_YEAR]); - /* year might have changed between the ARCBios call and now... */ - if ((sc->sc_base % 10) == 9) - sc->sc_base++; - - /* - * If the data in the chip does not make sense, assume the usual - * IRIX timebase (1940 because it's a leap year). - */ - if (sc->sc_base != 1940 && sc->sc_base != POSIX_BASE_YEAR) - sc->sc_base = 1940; - - sc->sc_todr.cookie = self; - sc->sc_todr.todr_gettime = dsclock_gettime; - sc->sc_todr.todr_settime = dsclock_settime; - todr_attach(&sc->sc_todr); -} - -/* - * Get the time of day, based on the clock's value and/or the base value. - */ -int -dsclock_gettime(struct todr_chip_handle *handle, struct timeval *tv) -{ - struct clock_ymdhms dt; - struct dsclock_softc *sc = handle->cookie; - ds1286_todregs regs; - int s; - - s = splhigh(); - DS1286_GETTOD(sc, ®s) - splx(s); - - dt.dt_sec = frombcd(regs[DS1286_SEC]); - dt.dt_min = frombcd(regs[DS1286_MIN]); - - if (regs[DS1286_HOUR] & DS1286_HOUR_12MODE) { - dt.dt_hour = frombcd(regs[DS1286_HOUR] & DS1286_HOUR_12HR_MASK) - + ((regs[DS1286_HOUR] & DS1286_HOUR_12HR_PM) ? 12 : 0); - - /* - * In AM/PM mode, hour range is 01-12, so adding in 12 hours - * for PM gives us 01-24, whereas we want 00-23, so map hour - * 24 to hour 0. - */ - if (dt.dt_hour == 24) - dt.dt_hour = 0; - } else { - dt.dt_hour = frombcd(regs[DS1286_HOUR] & - DS1286_HOUR_24HR_MASK); - } - - dt.dt_day = frombcd(regs[DS1286_DOM]); - dt.dt_mon = frombcd(regs[DS1286_MONTH] & DS1286_MONTH_MASK); - dt.dt_year = frombcd(regs[DS1286_YEAR]) + sc->sc_base; - - tv->tv_sec = clock_ymdhms_to_secs(&dt); - tv->tv_usec = 0; - return 0; -} - -/* - * Reset the TODR based on the time value. - */ -int -dsclock_settime(struct todr_chip_handle *handle, struct timeval *tv) -{ - struct clock_ymdhms dt; - struct dsclock_softc *sc = handle->cookie; - ds1286_todregs regs; - int s; - - clock_secs_to_ymdhms(tv->tv_sec, &dt); - - s = splhigh(); - DS1286_GETTOD(sc, ®s); - splx(s); - - regs[DS1286_SUBSEC] = 0; - regs[DS1286_SEC] = tobcd(dt.dt_sec); - regs[DS1286_MIN] = tobcd(dt.dt_min); - regs[DS1286_HOUR] = tobcd(dt.dt_hour) & DS1286_HOUR_24HR_MASK; - regs[DS1286_DOW] = tobcd(dt.dt_wday + 1); - regs[DS1286_DOM] = tobcd(dt.dt_day); - - /* Leave wave-generator bits as set originally */ - regs[DS1286_MONTH] &= ~DS1286_MONTH_MASK; - regs[DS1286_MONTH] |= tobcd(dt.dt_mon) & DS1286_MONTH_MASK; - - regs[DS1286_YEAR] = tobcd(dt.dt_year - sc->sc_base); - - s = splhigh(); - DS1286_PUTTOD(sc, ®s); - splx(s); - - return 0; -} |