Return to sysbutton.c CVS log

Up to [local] / sys / arch / macppc / dev

Annotation of sys/arch/macppc/dev/sysbutton.c, Revision 1.1.1.1

1.1       nbrk        1: /*
                      2:  * Copyright (c) 2007 Gordon Willem Klok <gwk@openbsd.org>
                      3:  *
                      4:  * Permission to use, copy, modify, and distribute this software for any
                      5:  * purpose with or without fee is hereby granted, provided that the above
                      6:  * copyright notice and this permission notice appear in all copies.
                      7:  *
                      8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                      9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     15:  */
                     16:
                     17: #include <sys/types.h>
                     18: #include <sys/param.h>
                     19: #include <sys/systm.h>
                     20: #include <sys/proc.h>
                     21: #include <sys/device.h>
                     22:
                     23: #include <ddb/db_var.h>
                     24: #include <dev/ofw/openfirm.h>
                     25:
                     26: #include <machine/bus.h>
                     27: #include <machine/autoconf.h>
                     28:
                     29: struct sysbutton_softc {
                     30:        struct device   sc_dev;
                     31:        int             sc_node;
                     32:        int             sc_intr;
                     33: };
                     34:
                     35: int sysbutton_match(struct device *, void *, void *);
                     36: void sysbutton_attach(struct device *, struct device *, void *);
                     37: int sysbutton_intr(void *);
                     38:
                     39: struct cfattach sysbutton_ca = {
                     40:        sizeof(struct sysbutton_softc), sysbutton_match,
                     41:        sysbutton_attach
                     42: };
                     43:
                     44: struct cfdriver sysbutton_cd = {
                     45:        NULL, "sysbutton", DV_DULL
                     46: };
                     47:
                     48: int
                     49: sysbutton_match(struct device *parent, void *arg, void *aux)
                     50: {
                     51:        struct confargs *ca = aux;
                     52:
                     53:        if (strcmp(ca->ca_name, "indicatorSwitch-gpio") == 0)
                     54:                return 1;
                     55:
                     56:        return 0;
                     57: }
                     58:
                     59: void
                     60: sysbutton_attach(struct device *parent, struct device *self, void *aux)
                     61: {
                     62:        struct sysbutton_softc *sc = (struct sysbutton_softc *)self;
                     63:        struct confargs *ca = aux;
                     64:        int intr[2];
                     65:
                     66:        sc->sc_node = ca->ca_node;
                     67:
                     68:        OF_getprop(sc->sc_node, "interrupts", intr, sizeof(intr));
                     69:        sc->sc_intr = intr[0];
                     70:
                     71:        printf(": irq %d\n", sc->sc_intr);
                     72:
                     73:        mac_intr_establish(parent, sc->sc_intr, IST_EDGE,
                     74:            IPL_NONE, sysbutton_intr, sc, sc->sc_dev.dv_xname);
                     75: }
                     76:
                     77: int
                     78: sysbutton_intr(void *v)
                     79: {
                     80:
                     81:        /*
                     82:         * XXX: Holding this button causes an interrupt storm if
                     83:         * ddb.console=0.
                     84:         */
                     85: #ifdef DDB
                     86:        if (db_console)
                     87:                Debugger();
                     88: #endif
                     89:
                     90:        return 1;
                     91: }