Copy of sys/arch/hpcmips/vr/button_vrgiu.c.
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takemura
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/* $NetBSD: button.c,v 1.1 2001/04/30 10:10:18 takemura Exp $ */
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/*-
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* Copyright (c) 1999
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* Shin Takemura and PocketBSD Project. 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. 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 PocketBSD project
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* and its contributors.
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* 4. Neither the name of the project 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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*/
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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/bus.h>
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#include <machine/config_hook.h>
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#include <machine/platid.h>
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#include <machine/platid_mask.h>
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#include <dev/hpc/hpciovar.h>
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#include "opt_vr41xx.h"
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#include <hpcmips/vr/vripvar.h>
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#include "locators.h"
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struct button_vrgiu_softc {
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struct device sc_dev;
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hpcio_chip_t sc_hc;
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hpcio_intr_handle_t sc_intr_handle;
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int sc_port;
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long sc_id;
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int sc_active;
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config_hook_tag sc_hook_tag;
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config_hook_tag sc_ghook_tag;
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};
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static int button_vrgiu_match __P((struct device *, struct cfdata *,
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void *));
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static void button_vrgiu_attach __P((struct device *, struct device *,
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void *));
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static int button_vrgiu_intr __P((void*));
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static int button_vrgiu_state __P((void *ctx, int type, long id,
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void *msg));
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struct cfattach button_vrgiu_ca = {
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sizeof(struct button_vrgiu_softc), button_vrgiu_match, button_vrgiu_attach
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};
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int
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button_vrgiu_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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platid_mask_t mask;
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if (match->cf_loc[HPCIOIFCF_PLATFORM] == 0)
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return 0;
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mask = PLATID_DEREF(match->cf_loc[HPCIOIFCF_PLATFORM]);
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return platid_match(&platid, &mask);
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}
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void
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button_vrgiu_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct hpcio_attach_args *haa = aux;
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int *loc;
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struct button_vrgiu_softc *sc = (void*)self;
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int mode;
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sc->sc_hc = (*haa->haa_getchip)(haa->haa_sc, VRIP_IOCHIP_VRGIU);
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loc = sc->sc_dev.dv_cfdata->cf_loc;
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sc->sc_port = loc[HPCIOIFCF_PORT];
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sc->sc_id = loc[HPCIOIFCF_ID];
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sc->sc_active = loc[HPCIOIFCF_ACTIVE];
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printf(" port=%d id=%ld active=%s",
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sc->sc_port, sc->sc_id, sc->sc_active ? "high" : "low");
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#if 0
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#if 1 /* Windows CE default */
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mode = VRGIU_INTR_EDGE_HOLD;
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#else /* XXX Don't challenge! Freestyle Only */
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mode = VRGIU_INTR_LEVEL_LOW_HOLD;
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#endif
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#endif
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mode = HPCIO_INTR_HOLD;
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if (loc[HPCIOIFCF_LEVEL] != HPCIOIFCF_LEVEL_DEFAULT) {
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mode |= HPCIO_INTR_LEVEL;
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if (loc[HPCIOIFCF_LEVEL] == 0)
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mode |= HPCIO_INTR_LOW;
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else
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mode |= HPCIO_INTR_HIGH;
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printf(" sense=level");
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} else {
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mode |= HPCIO_INTR_EDGE;
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printf(" sense=edge");
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}
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if (sc->sc_port == HPCIOIFCF_PORT_DEFAULT ||
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sc->sc_id == HPCIOIFCF_ID_DEFAULT)
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printf(" (ignored)");
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else
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sc->sc_intr_handle =
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hpcio_intr_establish(sc->sc_hc, sc->sc_port,
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mode, button_vrgiu_intr, sc);
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sc->sc_ghook_tag = config_hook(CONFIG_HOOK_GET,
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sc->sc_id,
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CONFIG_HOOK_SHARE,
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button_vrgiu_state,
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sc);
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printf("\n");
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}
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int
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button_vrgiu_state(ctx, type, id, msg)
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void *ctx;
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int type;
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long id;
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void *msg;
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{
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struct button_vrgiu_softc *sc = ctx;
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if (type != CONFIG_HOOK_GET || id != sc->sc_id)
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return 1;
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if (CONFIG_HOOK_VALUEP(msg))
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return 1;
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*(int*)msg = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_active);
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return 0;
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}
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int
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button_vrgiu_intr(ctx)
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void *ctx;
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{
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struct button_vrgiu_softc *sc = ctx;
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int on;
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on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_active);
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/* Clear interrupt */
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hpcio_intr_clear(sc->sc_hc, sc->sc_intr_handle);
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config_hook_call(CONFIG_HOOK_BUTTONEVENT, sc->sc_id, (void*)on);
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return 0;
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}
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