diff options
Diffstat (limited to 'sys/arch/sparc64/dev')
| -rw-r--r-- | sys/arch/sparc64/dev/power.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/power.c b/sys/arch/sparc64/dev/power.c new file mode 100644 index 00000000000..5019531dcfe --- /dev/null +++ b/sys/arch/sparc64/dev/power.c @@ -0,0 +1,120 @@ +/* $OpenBSD: power.c,v 1.1 2006/06/16 22:01:30 jason Exp $ */ + +/* + * Copyright (c) 2006 Jason L. Wright (jason@thought.net) + * All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +/* + * Driver for power-button device on U5, U10, etc. + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <sys/conf.h> +#include <sys/timeout.h> + +#include <machine/bus.h> +#include <machine/autoconf.h> +#include <machine/openfirm.h> + +#include <sparc64/dev/ebusreg.h> +#include <sparc64/dev/ebusvar.h> + +struct power_softc { + struct device sc_dev; + bus_space_tag_t sc_tag; + bus_space_handle_t sc_handle; + struct intrhand *sc_ih; +}; + +int power_match(struct device *, void *, void *); +void power_attach(struct device *, struct device *, void *); +int power_intr(void *); + +struct cfattach power_ca = { + sizeof(struct power_softc), power_match, power_attach +}; + +struct cfdriver power_cd = { + NULL, "power", DV_DULL +}; + +int +power_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct ebus_attach_args *ea = aux; + + if (strcmp(ea->ea_name, "power") == 0) + return (1); + return (0); +} + +void +power_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct power_softc *sc = (void *)self; + struct ebus_attach_args *ea = aux; + + sc->sc_tag = ea->ea_memtag; + + /* Use prom address if available, otherwise map it. */ + if (ea->ea_nvaddrs) { + if (bus_space_map(sc->sc_tag, ea->ea_vaddrs[0], 0, + BUS_SPACE_MAP_PROMADDRESS, &sc->sc_handle)) { + printf(": can't map PROM register space\n"); + return; + } + } else if (ebus_bus_map(sc->sc_tag, 0, + EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size, 0, 0, + &sc->sc_handle) != 0) { + printf(": can't map register space\n"); + return; + } + + if (ea->ea_nintrs > 0 && OF_getproplen(ea->ea_node, "button") >= 0) { + sc->sc_ih = bus_intr_establish(sc->sc_tag, ea->ea_intrs[0], + IPL_HIGH, 0, power_intr, sc, self->dv_xname); + if (sc->sc_ih == NULL) { + printf(": can't establish interrupt\n"); + return; + } + } + + printf("\n"); +} + +int +power_intr(void *vsc) +{ + return (0); +} |