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pwctl.c revision 1.3
      1 /*	$NetBSD: pwctl.c,v 1.3 2001/05/01 00:25:17 takemura Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999-2001
      5  *         TAKEMURA Shin and PocketBSD Project. All rights reserved.
      6  * Copyright (c) 2000,2001
      7  *         SATO Kazumi. All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the PocketBSD project
     20  *	and its contributors.
     21  * 4. Neither the name of the project nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  */
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/device.h>
     42 
     43 #include <machine/config_hook.h>
     44 #include <machine/platid.h>
     45 #include <machine/platid_mask.h>
     46 
     47 #include <dev/hpc/hpciovar.h>
     48 
     49 #include "locators.h"
     50 
     51 #define PWCTLVRGIUDEBUG
     52 #ifdef PWCTLVRGIUDEBUG
     53 int	pwctl_debug = 0;
     54 #define	DPRINTF(arg) if (pwctl_debug) printf arg;
     55 #else
     56 #define	DPRINTF(arg)
     57 #endif
     58 
     59 struct pwctl_softc {
     60 	struct device sc_dev;
     61 	hpcio_chip_t sc_hc;
     62 	int sc_port;
     63 	long sc_id;
     64 	int sc_on, sc_off;
     65 	config_hook_tag sc_hook_tag;
     66 	config_hook_tag sc_hook_hardpower;
     67 	config_hook_tag sc_ghook_tag;
     68 	int sc_save;
     69 	int sc_initvalue;
     70 };
     71 
     72 static int	pwctl_match __P((struct device *, struct cfdata *,
     73 				       void *));
     74 static void	pwctl_attach __P((struct device *, struct device *,
     75 					void *));
     76 static int	pwctl_hook __P((void *ctx, int type, long id,
     77 				      void *msg));
     78 static int	pwctl_ghook __P((void *ctx, int type, long id,
     79 				      void *msg));
     80 int	pwctl_hardpower __P((void *, int, long, void *));
     81 
     82 struct cfattach pwctl_ca = {
     83 	sizeof(struct pwctl_softc), pwctl_match, pwctl_attach
     84 };
     85 
     86 int
     87 pwctl_match(parent, match, aux)
     88 	struct device *parent;
     89 	struct cfdata *match;
     90 	void *aux;
     91 {
     92 	struct hpcio_attach_args *haa = aux;
     93 	platid_mask_t mask;
     94 
     95 	if (strcmp(haa->haa_busname, HPCIO_BUSNAME))
     96 		return 0;
     97 	if (match->cf_loc[HPCIOIFCF_PLATFORM] == 0)
     98 		return 0;
     99 	mask = PLATID_DEREF(match->cf_loc[HPCIOIFCF_PLATFORM]);
    100 	if (!platid_match(&platid, &mask))
    101 		return 0;
    102 	return 1;
    103 }
    104 
    105 void
    106 pwctl_attach(parent, self, aux)
    107 	struct device *parent;
    108 	struct device *self;
    109 	void *aux;
    110 {
    111 	struct hpcio_attach_args *haa = aux;
    112 	int *loc;
    113 	struct pwctl_softc *sc = (void*)self;
    114 
    115 	loc = sc->sc_dev.dv_cfdata->cf_loc;
    116 	sc->sc_hc = (*haa->haa_getchip)(haa->haa_sc, loc[HPCIOIFCF_IOCHIP]);
    117 	sc->sc_port = loc[HPCIOIFCF_PORT];
    118 	sc->sc_id = loc[HPCIOIFCF_ID];
    119 	sc->sc_on = loc[HPCIOIFCF_ACTIVE] ? 1 : 0;
    120 	sc->sc_off = loc[HPCIOIFCF_ACTIVE] ? 0 : 1;
    121 	sc->sc_initvalue = loc[HPCIOIFCF_INITVALUE];
    122 	printf(" port=%d id=%ld on=%d%s",
    123 		 sc->sc_port, sc->sc_id, sc->sc_on,
    124 		 sc->sc_initvalue == -1 ? "" :
    125 		 sc->sc_initvalue ? " init=on" : " init=off");
    126 
    127 	if (sc->sc_port == HPCIOIFCF_PORT_DEFAULT ||
    128 	    sc->sc_id == HPCIOIFCF_ID_DEFAULT) {
    129 		printf(" (ignored)");
    130 	} else {
    131 		sc->sc_hook_tag = config_hook(CONFIG_HOOK_POWERCONTROL,
    132 					      sc->sc_id, CONFIG_HOOK_SHARE,
    133 					      pwctl_hook, sc);
    134 		sc->sc_ghook_tag = config_hook(CONFIG_HOOK_GET,
    135 					      sc->sc_id, CONFIG_HOOK_SHARE,
    136 					      pwctl_ghook, sc);
    137 		sc->sc_hook_hardpower = config_hook(CONFIG_HOOK_PMEVENT,
    138 						CONFIG_HOOK_PMEVENT_HARDPOWER,
    139 						CONFIG_HOOK_SHARE,
    140 						pwctl_hardpower, sc);
    141 
    142 	}
    143 	if (sc->sc_initvalue != -1)
    144 		hpcio_portwrite(sc->sc_hc, sc->sc_port,
    145 				sc->sc_initvalue ? sc->sc_on : sc->sc_off);
    146 	printf("\n");
    147 }
    148 
    149 int
    150 pwctl_hook(ctx, type, id, msg)
    151 	void *ctx;
    152 	int type;
    153 	long id;
    154 	void *msg;
    155 {
    156 	struct pwctl_softc *sc = ctx;
    157 
    158 	DPRINTF(("pwctl hook: port %d %s(%d)", sc->sc_port,
    159 		 msg ? "ON" : "OFF", msg ? sc->sc_on : sc->sc_off));
    160 	hpcio_portwrite(sc->sc_hc, sc->sc_port,
    161 			msg ? sc->sc_on : sc->sc_off);
    162 	return (0);
    163 }
    164 
    165 int
    166 pwctl_ghook(ctx, type, id, msg)
    167 	void *ctx;
    168 	int type;
    169 	long id;
    170 	void *msg;
    171 {
    172 	struct pwctl_softc *sc = ctx;
    173 
    174 	if (CONFIG_HOOK_VALUEP(msg))
    175 		return 1;
    176 
    177 	*(int*)msg = hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on;
    178 	DPRINTF(("pwctl ghook: port %d %s(%d)", sc->sc_port,
    179 		 *(int*)msg? "ON" : "OFF", *(int*)msg ? sc->sc_on : sc->sc_off));
    180 	return 0;
    181 }
    182 
    183 int
    184 pwctl_hardpower(ctx, type, id, msg)
    185 	void *ctx;
    186 	int type;
    187 	long id;
    188 	void *msg;
    189 {
    190 	struct pwctl_softc *sc = ctx;
    191 	int why =(int)msg;
    192 
    193 #if 0
    194 	/* XXX debug print cause hang system... Huum...*/
    195 	DPRINTF(("pwctl hardpower: port %d %s: %s(%d)\n", sc->sc_port,
    196 		why == PWR_RESUME? "resume"
    197 		: why == PWR_SUSPEND? "suspend" : "standby",
    198 		sc->sc_save == sc->sc_on ? "on": "off", sc->sc_save));
    199 #endif /* 0 */
    200 	switch (why) {
    201 	case PWR_STANDBY:
    202 		break;
    203 	case PWR_SUSPEND:
    204 		sc->sc_save = hpcio_portread(sc->sc_hc, sc->sc_port);
    205 		hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_off);
    206 		break;
    207 	case PWR_RESUME:
    208 		hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_save);
    209 		break;
    210 	}
    211 	return (0);
    212 }
    213