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power.c revision 1.8 
      1  1.8   thorpej /*	$NetBSD: power.c,v 1.8 1998/01/12 20:23:55 thorpej Exp $ */
      2  1.1        pk 
      3  1.1        pk /*
      4  1.1        pk  * Copyright (c) 1996
      5  1.2    abrown  *	The President and Fellows of Harvard College. All rights reserved.
      6  1.1        pk  *
      7  1.1        pk  * All advertising materials mentioning features or use of this software
      8  1.1        pk  * must display the following acknowledgement:
      9  1.1        pk  *	This product includes software developed by Aaron Brown and
     10  1.1        pk  *	Harvard University.
     11  1.1        pk  *
     12  1.1        pk  * Redistribution and use in source and binary forms, with or without
     13  1.1        pk  * modification, are permitted provided that the following conditions
     14  1.1        pk  * are met:
     15  1.1        pk  *
     16  1.1        pk  * 1. Redistributions of source code must retain the above copyright
     17  1.1        pk  *    notice, this list of conditions and the following disclaimer.
     18  1.1        pk  * 2. Redistributions in binary form must reproduce the above copyright
     19  1.1        pk  *    notice, this list of conditions and the following disclaimer in the
     20  1.1        pk  *    documentation and/or other materials provided with the distribution.
     21  1.1        pk  * 3. All advertising materials mentioning features or use of this software
     22  1.1        pk  *    must display the following acknowledgement:
     23  1.1        pk  *	This product includes software developed by Harvard University
     24  1.1        pk  *	and its contributors.
     25  1.1        pk  * 4. Neither the name of the University nor the names of its contributors
     26  1.1        pk  *    may be used to endorse or promote products derived from this software
     27  1.1        pk  *    without specific prior written permission.
     28  1.1        pk  *
     29  1.1        pk  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     30  1.1        pk  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     31  1.1        pk  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     32  1.1        pk  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     33  1.1        pk  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     34  1.1        pk  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     35  1.1        pk  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     36  1.1        pk  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     37  1.1        pk  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     38  1.1        pk  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     39  1.1        pk  * SUCH DAMAGE.
     40  1.1        pk  */
     41  1.1        pk 
     42  1.1        pk #include <sys/param.h>
     43  1.1        pk #include <sys/device.h>
     44  1.1        pk #include <sys/kernel.h>
     45  1.1        pk #include <sys/systm.h>
     46  1.1        pk 
     47  1.1        pk #include <machine/autoconf.h>
     48  1.1        pk 
     49  1.1        pk #include <sparc/dev/power.h>
     50  1.1        pk 
     51  1.6        pk static int powermatch __P((struct device *, struct cfdata *, void *));
     52  1.1        pk static void powerattach __P((struct device *, struct device *, void *));
     53  1.1        pk 
     54  1.1        pk struct cfattach power_ca = {
     55  1.1        pk 	sizeof(struct device), powermatch, powerattach
     56  1.1        pk };
     57  1.1        pk 
     58  1.1        pk /*
     59  1.1        pk  * This is the driver for the "power" register available on some Sun4m
     60  1.1        pk  * machines. This allows the machine to remove power automatically when
     61  1.1        pk  * shutdown or halted or whatever.
     62  1.1        pk  *
     63  1.1        pk  * XXX: this capability is not utilized in the current kernel.
     64  1.1        pk  */
     65  1.1        pk 
     66  1.1        pk static int
     67  1.6        pk powermatch(parent, cf, aux)
     68  1.1        pk 	struct device *parent;
     69  1.6        pk 	struct cfdata *cf;
     70  1.6        pk 	void *aux;
     71  1.1        pk {
     72  1.1        pk 	register struct confargs *ca = aux;
     73  1.1        pk 
     74  1.1        pk 	if (CPU_ISSUN4M)
     75  1.1        pk 		return (strcmp("power", ca->ca_ra.ra_name) == 0);
     76  1.1        pk 
     77  1.1        pk 	return (0);
     78  1.1        pk }
     79  1.1        pk 
     80  1.1        pk /* ARGSUSED */
     81  1.1        pk static void
     82  1.1        pk powerattach(parent, self, aux)
     83  1.1        pk 	struct device *parent, *self;
     84  1.1        pk 	void *aux;
     85  1.1        pk {
     86  1.1        pk 	struct confargs *ca = aux;
     87  1.1        pk 	struct romaux *ra = &ca->ca_ra;
     88  1.1        pk 
     89  1.7        pk 	power_reg = mapiodev(ra->ra_reg, 0, sizeof(long));
     90  1.1        pk 
     91  1.5  christos 	printf("\n");
     92  1.1        pk }
     93  1.1        pk 
     94  1.1        pk void
     95  1.1        pk powerdown()
     96  1.1        pk {
     97  1.1        pk 	*POWER_REG |= POWER_OFF;
     98  1.1        pk }
     99