121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
/* $NetBSD: hpcin.c,v 1.15 2012/10/27 17:18:17 chs Exp $ */
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/*-
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* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: hpcin.c,v 1.15 2012/10/27 17:18:17 chs Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/config_hook.h>
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#include <sys/bus.h>
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#include <dev/hpc/hpciovar.h>
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#include <dev/hpc/hpciomanvar.h>
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#include "locators.h"
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int hpcin_match(device_t, cfdata_t, void *);
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void hpcin_attach(device_t, device_t, void *);
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int hpcin_intr(void *);
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struct hpcin_softc {
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struct hpcioman_attach_args sc_hma;
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hpcio_intr_handle_t sc_ih;
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config_call_tag sc_ct;
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};
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#define sc_hc sc_hma.hma_hc
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#define sc_intr_mode sc_hma.hma_intr_mode
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#define sc_type sc_hma.hma_type
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#define sc_id sc_hma.hma_id
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#define sc_port sc_hma.hma_port
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#define sc_initvalue sc_hma.hma_initvalue
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#define sc_on sc_hma.hma_on
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#define sc_off sc_hma.hma_off
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#define sc_connect sc_hma.hma_connect
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CFATTACH_DECL_NEW(hpcin, sizeof(struct hpcin_softc),
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hpcin_match, hpcin_attach, NULL, NULL);
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int
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hpcin_match(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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void
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hpcin_attach(device_t parent, device_t self, void *aux)
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{
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struct hpcioman_attach_args *hma = aux;
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struct hpcin_softc *sc = device_private(self);
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if (hma->hma_hc == NULL ||
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hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
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hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
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hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
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printf(": ignored\n");
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return;
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}
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printf("\n");
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sc->sc_hma = *hma; /* structure assignment */
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/* install interrupt handler */
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sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
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sc->sc_intr_mode, hpcin_intr, sc);
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if (sc->sc_ih == NULL)
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printf("hpcin: can't install interrupt handler\n");
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if (sc->sc_connect)
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sc->sc_ct = config_connect(sc->sc_type, sc->sc_id);
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}
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int
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hpcin_intr(void *arg)
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{
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struct hpcin_softc *sc = arg;
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int on;
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on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
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if (sc->sc_connect) {
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config_connected_call(sc->sc_ct, (void *)on);
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} else {
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printf("%s: type=%d, id=%d\n", __func__,
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sc->sc_type, sc->sc_id);
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config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
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printf("done.\n");
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}
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return (0);
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}
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