471e528b58
struct timeval passed to todr_gettime(9) and todr_settime(9). We no longer have an ancient and volatile struct timeval `time' global since we have switched to MI timercounter(9) on all port. XXX1: some of these RTC drivers still assume 32bit time_t XXX2: some of these should be rewritten to use todr_[gs]ettime_ymdhms() XXX3: todr(9) man page doesn't mention todr_[gs]ettime_ymdhms()
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/* $NetBSD: pl030_rtc.c,v 1.10 2009/12/12 14:44:09 tsutsui Exp $ */
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/*
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* Copyright (c) 2001 ARM Ltd
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* 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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* 3. The name of the company may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* Include header files */
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pl030_rtc.c,v 1.10 2009/12/12 14:44:09 tsutsui Exp $");
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#include <sys/types.h>
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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 <sys/device.h>
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#include <dev/clock_subr.h>
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#include <arm/cpufunc.h>
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#include <machine/intr.h>
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#include <evbarm/ifpga/ifpgavar.h>
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#include <evbarm/ifpga/ifpgamem.h>
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#include <evbarm/ifpga/ifpgareg.h>
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#define PL030_RTC_SIZE 0x14
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struct plrtc_softc {
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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struct todr_chip_handle sc_todr;
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};
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static int plrtc_probe (device_t, cfdata_t, void *);
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static void plrtc_attach (device_t, device_t, void *);
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CFATTACH_DECL_NEW(plrtc, sizeof(struct plrtc_softc),
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plrtc_probe, plrtc_attach, NULL, NULL);
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static int
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plrtc_gettime(todr_chip_handle_t todr, struct timeval *tv)
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{
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struct plrtc_softc *sc;
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sc = (struct plrtc_softc *)todr->cookie;
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tv->tv_sec = bus_space_read_4(sc->sc_iot, sc->sc_ioh, IFPGA_RTC_DR);
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/* initialize tv_usec? */
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return 0;
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}
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static int
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plrtc_settime(todr_chip_handle_t todr, struct timeval *tv)
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{
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struct plrtc_softc *sc;
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sc = (struct plrtc_softc *)todr->cookie;
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bus_space_write_4(sc->sc_iot, sc->sc_ioh, IFPGA_RTC_LR, tv->tv_sec);
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return 0;
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}
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static int
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plrtc_probe(device_t parent, cfdata_t cf, void *aux)
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{
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return 1;
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}
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static void
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plrtc_attach(device_t parent, device_t self, void *aux)
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{
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struct ifpga_attach_args *ifa = aux;
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struct plrtc_softc *sc = device_private(self);
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sc->sc_iot = ifa->ifa_iot;
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if (bus_space_map(ifa->ifa_iot, ifa->ifa_addr, PL030_RTC_SIZE, 0,
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&sc->sc_ioh)) {
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printf("%s: unable to map device\n", device_xname(self));
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return;
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}
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memset(&sc->sc_todr, 0, sizeof(struct todr_chip_handle));
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sc->sc_todr.cookie = sc;
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sc->sc_todr.todr_gettime = plrtc_gettime;
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sc->sc_todr.todr_settime = plrtc_settime;
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todr_attach( &sc->sc_todr );
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printf("\n");
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}
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