158 lines
5.7 KiB
C
158 lines
5.7 KiB
C
/* $NetBSD: timer_jazzio.c,v 1.11 2012/10/27 17:17:35 chs Exp $ */
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/* $OpenBSD: clock.c,v 1.6 1998/10/15 21:30:15 imp Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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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* from: Utah Hdr: clock.c 1.18 91/01/21
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*
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* from: @(#)clock.c 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Copyright (c) 1997 Per Fogelstrom.
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* Copyright (c) 1988 University of Utah.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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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* from: Utah Hdr: clock.c 1.18 91/01/21
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*
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* from: @(#)clock.c 8.1 (Berkeley) 6/10/93
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: timer_jazzio.c,v 1.11 2012/10/27 17:17:35 chs Exp $");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/autoconf.h>
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#include <machine/platform.h>
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#include <dev/isa/isavar.h>
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#include <arc/arc/timervar.h>
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#include <arc/jazz/jazziovar.h>
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#include <arc/jazz/timer_jazziovar.h>
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/* Definition of the driver for autoconfig. */
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static int timer_jazzio_match(device_t , cfdata_t, void *);
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static void timer_jazzio_attach(device_t , device_t , void *);
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CFATTACH_DECL_NEW(timer_jazzio, 0,
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timer_jazzio_match, timer_jazzio_attach, NULL, NULL);
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/* Jazz timer access code */
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static void timer_jazzio_init(device_t);
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struct timerfns timerfns_jazzio = {
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timer_jazzio_init,
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};
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struct timer_jazzio_config *timer_jazzio_conf = NULL;
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struct evcnt timer_jazzio_ev =
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EVCNT_INITIALIZER(EVCNT_TYPE_INTR, NULL, "jazzio", "timer");
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static int timer_jazzio_found = 0;
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static int
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timer_jazzio_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct jazzio_attach_args *ja = aux;
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/* make sure that we're looking for this type of device. */
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if (strcmp(ja->ja_name, "timer") != 0)
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return 0;
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if (timer_jazzio_found)
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return 0;
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return 1;
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}
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static void
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timer_jazzio_attach(device_t parent, device_t self, void *aux)
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{
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if (timer_jazzio_conf == NULL)
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panic("timer_jazzio_conf isn't initialized");
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aprint_normal("\n");
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evcnt_attach_static(&timer_jazzio_ev);
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(*platform->set_intr)(timer_jazzio_conf->tjc_intr_mask,
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timer_jazzio_conf->tjc_intr, ARC_INTPRI_TIMER_INT);
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timerattach(self, &timerfns_jazzio);
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timer_jazzio_found = 1;
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}
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void
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timer_jazzio_init(device_t sc)
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{
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(*timer_jazzio_conf->tjc_init)(1000 / hz);
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}
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