/* $OpenBSD: power.c,v 1.9 2005/07/08 12:34:36 miod Exp $ */ /* $NetBSD: power.c,v 1.2 1996/05/16 15:56:56 abrown Exp $ */ /* * Copyright (c) 1996 * The President and Fellows of Harvard College. All rights reserved. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Aaron Brown and * Harvard University. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Harvard University * and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * */ #include #include #include #include #include #include void powerattach(struct device *, struct device *, void *); int powermatch(struct device *, void *, void *); struct cfattach power_ca = { sizeof(struct device), powermatch, powerattach }; struct cfdriver power_cd = { NULL, "power", DV_DULL }; static char power_attached = 0; volatile u_char *power_reg; /* * This is the driver for the "power" register available on some Sun4m * machines. This allows the machine to remove power automatically when * shutdown or halted or whatever. */ int powermatch(struct device *parent, void *vcf, void *aux) { struct confargs *ca = aux; if (CPU_ISSUN4M) { if (strcmp("power", ca->ca_ra.ra_name) == 0) return (1); } return (0); } /* ARGSUSED */ void powerattach(struct device *parent, struct device *self, void *aux) { struct confargs *ca = aux; struct romaux *ra = &ca->ca_ra; power_reg = mapdev(ra->ra_reg, 0, 0, sizeof(long)); power_attached = 1; printf("\n"); } void auxio_powerdown() { if (power_attached) { *POWER_REG |= POWER_OFF; DELAY(1000000); } }