/*-
* Copyright (c) 1999 Shin Takemura. All rights reserved.
* Copyright (c) 1999 SATO Kazumi. All rights reserved.
* Copyright (c) 1999 PocketBSD Project. 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 PocketBSD project
* and its contributors.
* 4. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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.
*
*/
sc->sc_iot = va->va_iot;
if (bus_space_map(sc->sc_iot, va->va_addr, va->va_size,
0 /* no flags */, &sc->sc_ioh)) {
printf("vrrtc_attach: can't map i/o space\n");
return;
}
/* RTC interrupt handler is directly dispatched from CPU intr */
vr_intr_establish(VR_INTR1, vrrtc_intr, sc);
/* But need to set level 1 interrupt mask register,
* so register fake interrurpt handler
*/
if (!(sc->sc_ih = vrip_intr_establish(va->va_vc, va->va_unit, 0,
IPL_CLOCK, 0, 0))) {
printf (":can't map interrupt.\n");
return;
}
/*
* Rtc is attached to call this routine
* before cpu_initclock() calls clock_init().
* So we must disable all interrupt for now.
*/
/*
* Disable all rtc interrupts
*/
/* Disable Elapse compare intr */
bus_space_write_2(sc->sc_iot, sc->sc_ioh, ECMP_H_REG_W, 0);
bus_space_write_2(sc->sc_iot, sc->sc_ioh, ECMP_M_REG_W, 0);
bus_space_write_2(sc->sc_iot, sc->sc_ioh, ECMP_L_REG_W, 0);
/* Disable RTC Long1 intr */
bus_space_write_2(sc->sc_iot, sc->sc_ioh, RTCL1_H_REG_W, 0);
bus_space_write_2(sc->sc_iot, sc->sc_ioh, RTCL1_L_REG_W, 0);
/* Disable RTC Long2 intr */
bus_space_write_2(sc->sc_iot, sc->sc_ioh, RTCL2_H_REG_W, 0);
bus_space_write_2(sc->sc_iot, sc->sc_ioh, RTCL2_L_REG_W, 0);
/* Disable RTC TCLK intr */
if (TCLK_H_REG_W != RTC_NO_REG_W) {
bus_space_write_2(sc->sc_iot, sc->sc_ioh, TCLK_H_REG_W, 0);
bus_space_write_2(sc->sc_iot, sc->sc_ioh, TCLK_L_REG_W, 0);
}
/*
* Clear all rtc interrupts.
*/
bus_space_write_2(sc->sc_iot, sc->sc_ioh, RTCINT_REG_W, RTCINT_ALL);
/*
* Figure out the epoch, which could be either forward or
* backwards in time. We assume that the start date will always
* be on Jan 1.
*/
for (year = EPOCHYEAR; year < POSIX_BASE_YEAR; year++) {
sc->sc_epoch += days_per_year(year) * SECS_PER_DAY;
}
for (year = POSIX_BASE_YEAR; year < EPOCHYEAR; year++) {
sc->sc_epoch -= days_per_year(year) * SECS_PER_DAY;
}
