/* $OpenBSD: power.c,v 1.4 2007/06/15 18:17:25 miod Exp $ */ /* * Copyright (c) 2007 Martin Reindl. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include struct power_softc { struct device sc_dev; void *sc_ih; }; int power_match(struct device *, void *, void *); void power_attach(struct device *, struct device *, void *); int power_intr(void *aux); struct cfattach power_ca = { sizeof(struct power_softc), power_match, power_attach }; struct cfdriver power_cd = { NULL, "power", DV_DULL }; struct power_softc *power_softc; int power_match(struct device *parent, void *match, void *aux) { struct obio_attach_args *oa = aux; static struct obio_irq power_match_irq; oa->oa_nio = 0; oa->oa_niomem = 0; if (oa->oa_nirq == 0) oa->oa_irq = &power_match_irq; oa->oa_nirq = 1; oa->oa_irq[0].or_irq = LANDISK_INTR_PWRSW; return (1); } void power_attach(struct device *parent, struct device *self, void *aux) { struct power_softc *sc = (void *)self; power_softc = sc; sc->sc_ih = extintr_establish(LANDISK_INTR_PWRSW, IPL_TTY, power_intr, sc, sc->sc_dev.dv_xname); if (sc->sc_ih == NULL) { printf(": couldn't map interrupt\n"); return; } printf("\n"); } int power_intr(void *arg) { extern int kbd_reset; int status; status = (int8_t)_reg_read_1(LANDISK_BTNSTAT); if (status == -1) { return (0); } status = ~status; if (status & BTN_POWER_BIT) { #ifdef DEBUG printf("%s switched\n", sc->sc_dev.dv_xname); Debugger(); #endif _reg_write_1(LANDISK_PWRSW_INTCLR, 1); if (kbd_reset == 1) { kbd_reset = 0; psignal(initproc, SIGUSR1); } return (1); } return (0); }