NetBSD-5.0.2/sys/arch/sun2/sun2/tod.c
/* $NetBSD: tod.c,v 1.14 2008/07/06 13:29:50 tsutsui Exp $ */
/*
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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. Neither the name of the University 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.
*
* from: Utah Hdr: clock.c 1.18 91/01/21$
* from: @(#)clock.c 8.2 (Berkeley) 1/12/94
*/
/*
* Copyright (c) 2001 Matthew Fredette
* Copyright (c) 1994 Gordon W. Ross
* Copyright (c) 1993 Adam Glass
* Copyright (c) 1988 University of Utah.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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.
*
* from: Utah Hdr: clock.c 1.18 91/01/21$
* from: @(#)clock.c 8.2 (Berkeley) 1/12/94
*/
/*
* Machine-dependent clock routines for the NS mm58167 time-of-day chip.
* Written by Matthew Fredette, based on the sun3 clock.c by
* Adam Glass and Gordon Ross.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tod.c,v 1.14 2008/07/06 13:29:50 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <m68k/asm_single.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <sun2/sun2/machdep.h>
#include <sun2/sun2/tod.h>
#include <dev/vme/vmereg.h>
#include <dev/vme/vmevar.h>
#include <dev/clock_subr.h>
#include <dev/ic/mm58167var.h>
static int tod_obio_match(device_t, cfdata_t, void *args);
static void tod_obio_attach(device_t, device_t, void *);
static int tod_vme_match(device_t, cfdata_t, void *args);
static void tod_vme_attach(device_t, device_t, void *);
static void tod_attach(struct mm58167_softc *);
CFATTACH_DECL_NEW(tod_obio, sizeof(struct mm58167_softc),
tod_obio_match, tod_obio_attach, NULL, NULL);
CFATTACH_DECL_NEW(tod_vme, sizeof(struct mm58167_softc),
tod_vme_match, tod_vme_attach, NULL, NULL);
static int tod_attached;
static int
tod_obio_match(device_t parent, cfdata_t cf, void *args)
{
struct obio_attach_args *oba = args;
bus_space_handle_t bh;
int matched;
/* This driver only supports one unit. */
if (tod_attached)
return 0;
/* Make sure there is something there... */
if (bus_space_map(oba->oba_bustag, oba->oba_paddr, MM58167REG_BANK_SZ,
0, &bh))
return 0;
matched = (bus_space_peek_1(oba->oba_bustag, bh, 0, NULL) == 0);
bus_space_unmap(oba->oba_bustag, bh, MM58167REG_BANK_SZ);
return matched;
}
static void
tod_obio_attach(device_t parent, device_t self, void *args)
{
struct obio_attach_args *oba = args;
struct mm58167_softc *sc;
tod_attached = 1;
sc = device_private(self);
sc->mm58167_dev = self;
/* Map the device. */
sc->mm58167_regt = oba->oba_bustag;
if (bus_space_map(oba->oba_bustag, oba->oba_paddr, MM58167REG_BANK_SZ,
0, &sc->mm58167_regh))
panic("%s: can't map", __func__);
tod_attach(sc);
}
static int
tod_vme_match(device_t parent, cfdata_t cf, void *aux)
{
struct vme_attach_args *va = aux;
vme_chipset_tag_t ct = va->va_vct;
vme_am_t mod;
vme_addr_t vme_addr;
/* Make sure there is something there... */
mod = VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA;
vme_addr = va->r[0].offset;
if (vme_probe(ct, vme_addr, 1, mod, VME_D8, NULL, 0) != 0)
return 0;
return 1;
}
static void
tod_vme_attach(device_t parent, device_t self, void *aux)
{
struct mm58167_softc *sc;
struct vme_attach_args *va = aux;
vme_chipset_tag_t ct = va->va_vct;
bus_space_tag_t bt;
bus_space_handle_t bh;
vme_am_t mod;
vme_mapresc_t resc;
sc = device_private(self);
sc->mm58167_dev = self;
mod = VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA;
if (vme_space_map(ct, va->r[0].offset, MM58167REG_BANK_SZ,
mod, VME_D8, 0, &bt, &bh, &resc) != 0)
panic("%s: can't map", __func__);
sc->mm58167_regt = bt;
sc->mm58167_regh = bh;
tod_attach(sc);
}
static void
tod_attach(struct mm58167_softc *sc)
{
todr_chip_handle_t tch;
/* Call the IC attach code. */
sc->mm58167_msec_xxx = MM58167REG_MSEC_XXX;
sc->mm58167_csec = MM58167REG_CSEC;
sc->mm58167_sec = MM58167REG_SEC;
sc->mm58167_min = MM58167REG_MIN;
sc->mm58167_hour = MM58167REG_HOUR;
sc->mm58167_wday = MM58167REG_WDAY;
sc->mm58167_day = MM58167REG_DAY;
sc->mm58167_mon = MM58167REG_MON;
sc->mm58167_status = MM58167REG_STATUS;
sc->mm58167_go = MM58167REG_GO;
if ((tch = mm58167_attach(sc)) == NULL)
panic("%s: can't attach ic", __func__);
todr_attach(tch);
aprint_normal("\n");
}