150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/* $NetBSD: pwrsw_obio.c,v 1.1 2006/09/01 21:26:18 uwe Exp $ */
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/*-
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* Copyright (c) 2005 NONAKA Kimihiro
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* 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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*
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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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#include "btn_obio.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pwrsw_obio.c,v 1.1 2006/09/01 21:26:18 uwe Exp $");
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#include <sys/types.h>
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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 <sys/malloc.h>
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#include <sys/conf.h>
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#include <sys/ioctl.h>
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#include <dev/sysmon/sysmonvar.h>
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#include <dev/sysmon/sysmon_taskq.h>
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#include <sh3/devreg.h>
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#include <landisk/landisk/landiskreg.h>
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#include <landisk/dev/obiovar.h>
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struct pwrsw_obio_softc {
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struct device sc_dev;
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void *sc_ih;
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struct sysmon_pswitch sc_smpsw; /* our sysmon glue */
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int sc_flags;
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#define SYSMON_ATTACHED 1
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};
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static int pwrsw_obio_probe(struct device *, struct cfdata *, void *);
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static void pwrsw_obio_attach(struct device *, struct device *, void *);
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static int pwrsw_intr(void *aux);
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static void pwrsw_pressed_event(void *arg);
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CFATTACH_DECL(pwrsw_obio, sizeof(struct pwrsw_obio_softc),
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pwrsw_obio_probe, pwrsw_obio_attach, NULL, NULL);
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static struct pwrsw_obio_softc *pwrsw_softc;
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static int
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pwrsw_obio_probe(struct device *parent, struct cfdata *cfp, void *aux)
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{
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struct obio_attach_args *oa = aux;
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if (pwrsw_softc)
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return (0);
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oa->oa_nio = 0;
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oa->oa_niomem = 0;
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oa->oa_nirq = 1;
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oa->oa_irq[0].or_irq = LANDISK_INTR_PWRSW;
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return (1);
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}
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static void
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pwrsw_obio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pwrsw_obio_softc *sc = (void *)self;
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printf(": Power Switch\n");
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pwrsw_softc = sc;
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sc->sc_smpsw.smpsw_name = sc->sc_dev.dv_xname;
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sc->sc_smpsw.smpsw_type = PSWITCH_TYPE_POWER;
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sc->sc_ih = extintr_establish(LANDISK_INTR_PWRSW, IPL_TTY,
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pwrsw_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("%s: couldn't establish intr handler",
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sc->sc_dev.dv_xname);
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panic("extintr_establish");
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}
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if (sysmon_pswitch_register(&sc->sc_smpsw) != 0) {
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printf("%s: unable to register with sysmon\n",
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sc->sc_dev.dv_xname);
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return;
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}
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sc->sc_flags |= SYSMON_ATTACHED;
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}
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static int
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pwrsw_intr(void *arg)
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{
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struct pwrsw_obio_softc *sc = (void *)arg;
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int status;
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status = (int8_t)_reg_read_1(LANDISK_BTNSTAT);
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if (status == -1) {
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return (0);
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}
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status = ~status;
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if (status & BTN_POWER_BIT) {
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if (sc->sc_flags & SYSMON_ATTACHED) {
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sysmon_task_queue_sched(0, pwrsw_pressed_event, sc);
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extintr_disable(sc->sc_ih);
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#if NBTN_OBIO > 0
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extintr_disable_by_num(LANDISK_INTR_BTN);
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#endif
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} else {
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printf("%s: pressed\n", sc->sc_dev.dv_xname);
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}
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_reg_write_1(LANDISK_PWRSW_INTCLR, 1);
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return (1);
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}
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return (0);
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}
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static void
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pwrsw_pressed_event(void *arg)
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{
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struct pwrsw_obio_softc *sc = (void *)arg;
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sysmon_pswitch_event(&sc->sc_smpsw, PSWITCH_EVENT_PRESSED);
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}
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