diff options
Diffstat (limited to 'sys/arch/macppc/dev')
-rw-r--r-- | sys/arch/macppc/dev/sysbutton.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/sys/arch/macppc/dev/sysbutton.c b/sys/arch/macppc/dev/sysbutton.c new file mode 100644 index 00000000000..a8845a84c5d --- /dev/null +++ b/sys/arch/macppc/dev/sysbutton.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2007 Gordon Willem Klok <gwk@openbsd.org> + * + * 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 <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/proc.h> +#include <sys/device.h> + +#include <ddb/db_var.h> +#include <dev/ofw/openfirm.h> + +#include <machine/bus.h> +#include <machine/autoconf.h> + +struct sysbutton_softc { + struct device sc_dev; + int sc_node; + int sc_intr; +}; + +int sysbutton_match(struct device *, void *, void *); +void sysbutton_attach(struct device *, struct device *, void *); +int sysbutton_intr(void *); + +struct cfattach sysbutton_ca = { + sizeof(struct sysbutton_softc), sysbutton_match, + sysbutton_attach +}; + +struct cfdriver sysbutton_cd = { + NULL, "sysbutton", DV_DULL +}; + +int +sysbutton_match(struct device *parent, void *arg, void *aux) +{ + struct confargs *ca = aux; + + if (strcmp(ca->ca_name, "indicatorSwitch-gpio") == 0) + return 1; + + return 0; +} + +void +sysbutton_attach(struct device *parent, struct device *self, void *aux) +{ + struct sysbutton_softc *sc = (struct sysbutton_softc *)self; + struct confargs *ca = aux; + int intr[2]; + + sc->sc_node = ca->ca_node; + + OF_getprop(sc->sc_node, "interrupts", intr, sizeof(intr)); + sc->sc_intr = intr[0]; + + printf(": irg %d\n", sc->sc_intr); + + mac_intr_establish(parent, sc->sc_intr, IST_LEVEL, + IPL_NONE, sysbutton_intr, sc, sc->sc_dev.dv_xname); +} + +int +sysbutton_intr(void *v) +{ + + /* + * XXX: Holding this button causes an interrupt storm if + * ddb.console=0. + */ +#ifdef DDB + if (db_console) + Debugger(); +#endif + + return 1; +} |