NetBSD/sys/dev/hpc/hpcin.c

130 lines
4.1 KiB
C

/* $NetBSD: hpcin.c,v 1.5 2002/01/13 14:00:38 takemura Exp $ */
/*-
* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hpcin.c,v 1.5 2002/01/13 14:00:38 takemura Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/config_hook.h>
#include <machine/bus.h>
#include <dev/hpc/hpciovar.h>
#include <dev/hpc/hpciomanvar.h>
#include "locators.h"
int hpcin_match(struct device *, struct cfdata *, void *);
void hpcin_attach(struct device *, struct device *, void *);
int hpcin_intr(void *);
struct hpcin_softc {
struct device sc_dev;
struct hpcioman_attach_args sc_hma;
hpcio_intr_handle_t sc_ih;
config_call_tag sc_ct;
};
#define sc_hc sc_hma.hma_hc
#define sc_intr_mode sc_hma.hma_intr_mode
#define sc_type sc_hma.hma_type
#define sc_id sc_hma.hma_id
#define sc_port sc_hma.hma_port
#define sc_initvalue sc_hma.hma_initvalue
#define sc_on sc_hma.hma_on
#define sc_off sc_hma.hma_off
#define sc_connect sc_hma.hma_connect
struct cfattach hpcin_ca = {
sizeof(struct hpcin_softc), hpcin_match, hpcin_attach
};
int
hpcin_match(struct device *parent, struct cfdata *cf, void *aux)
{
return (1);
}
void
hpcin_attach(struct device *parent, struct device *self, void *aux)
{
struct hpcioman_attach_args *hma = aux;
struct hpcin_softc *sc = (void *)self;
if (hma->hma_hc == NULL ||
hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT ||
hma->hma_id == HPCIOMANCF_ID_DEFAULT ||
hma->hma_port == HPCIOMANCF_PORT_DEFAULT) {
printf(": ignored\n");
return;
}
printf("\n");
sc->sc_hma = *hma; /* structure assignment */
/* install interrupt handler */
sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port,
sc->sc_intr_mode, hpcin_intr, sc);
if (sc->sc_ih == NULL)
printf("hpcin: can't install interrupt handler\n");
if (sc->sc_connect)
sc->sc_ct = config_connect(sc->sc_type, sc->sc_id);
}
int
hpcin_intr(void *arg)
{
struct hpcin_softc *sc = arg;
int on;
on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
if (sc->sc_connect) {
config_connected_call(sc->sc_ct, (void *)on);
} else {
printf("%s: type=%d, id=%d\n", __FUNCTION__,
sc->sc_type, sc->sc_id);
config_hook_call(sc->sc_type, sc->sc_id, (void *)on);
printf("done.\n");
}
return (0);
}