NetBSD-5.0.2/sys/dev/hpc/pwctl.c
/* $NetBSD: pwctl.c,v 1.17 2007/10/19 11:59:43 ad Exp $ */
/*-
* Copyright (c) 1999-2001
* TAKEMURA Shin and PocketBSD Project. All rights reserved.
* Copyright (c) 2000,2001
* SATO Kazumi. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the PocketBSD project
* and its contributors.
* 4. Neither the name of the project 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pwctl.c,v 1.17 2007/10/19 11:59:43 ad Exp $");
#ifdef _KERNEL_OPT
#include "opt_pwctl.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <sys/bus.h>
#include <machine/config_hook.h>
#include <machine/platid.h>
#include <machine/platid_mask.h>
#include <dev/hpc/hpciovar.h>
#include "locators.h"
#ifdef PWCTLDEBUG
#ifndef PWCTLDEBUG_CONF
#define PWCTLDEBUG_CONF 0
#endif
int pwctl_debug = PWCTLDEBUG_CONF;
#define DPRINTF(arg) if (pwctl_debug) printf arg;
#define VPRINTF(arg) if (bootverbose) printf arg;
#else
#define DPRINTF(arg)
#define VPRINTF(arg) if (bootverbose) printf arg;
#endif
struct pwctl_softc {
struct device sc_dev;
hpcio_chip_t sc_hc;
int sc_port;
long sc_id;
int sc_on, sc_off;
config_hook_tag sc_hook_tag;
config_hook_tag sc_hook_hardpower;
config_hook_tag sc_ghook_tag;
int sc_save;
int sc_initvalue;
};
static int pwctl_match(struct device *, struct cfdata *, void *);
static void pwctl_attach(struct device *, struct device *, void *);
static int pwctl_hook(void *, int, long, void *);
static int pwctl_ghook(void *, int, long, void *);
int pwctl_hardpower(void *, int, long, void *);
CFATTACH_DECL(pwctl, sizeof(struct pwctl_softc),
pwctl_match, pwctl_attach, NULL, NULL);
int
pwctl_match(struct device *parent, struct cfdata *match, void *aux)
{
struct hpcio_attach_args *haa = aux;
platid_mask_t mask;
if (strcmp(haa->haa_busname, HPCIO_BUSNAME))
return (0);
if (match->cf_loc[HPCIOIFCF_PLATFORM] == 0)
return (0);
mask = PLATID_DEREF(match->cf_loc[HPCIOIFCF_PLATFORM]);
if (!platid_match(&platid, &mask))
return (0);
return (1);
}
void
pwctl_attach(struct device *parent, struct device *self, void *aux)
{
struct hpcio_attach_args *haa = aux;
int *loc;
struct pwctl_softc *sc = device_private(self);
loc = device_cfdata(&sc->sc_dev)->cf_loc;
sc->sc_hc = (*haa->haa_getchip)(haa->haa_sc, loc[HPCIOIFCF_IOCHIP]);
sc->sc_port = loc[HPCIOIFCF_PORT];
sc->sc_id = loc[HPCIOIFCF_ID];
sc->sc_on = loc[HPCIOIFCF_ACTIVE] ? 1 : 0;
sc->sc_off = loc[HPCIOIFCF_ACTIVE] ? 0 : 1;
sc->sc_initvalue = loc[HPCIOIFCF_INITVALUE];
printf(" port=%d id=%ld on=%d%s",
sc->sc_port, sc->sc_id, sc->sc_on,
sc->sc_initvalue == -1 ? "" :
sc->sc_initvalue ? " init=on" : " init=off");
if (sc->sc_port == HPCIOIFCF_PORT_DEFAULT ||
sc->sc_id == HPCIOIFCF_ID_DEFAULT) {
printf(" (ignored)");
} else {
sc->sc_hook_tag = config_hook(CONFIG_HOOK_POWERCONTROL,
sc->sc_id, CONFIG_HOOK_SHARE, pwctl_hook, sc);
sc->sc_ghook_tag = config_hook(CONFIG_HOOK_GET,
sc->sc_id, CONFIG_HOOK_SHARE, pwctl_ghook, sc);
sc->sc_hook_hardpower = config_hook(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_HARDPOWER, CONFIG_HOOK_SHARE,
pwctl_hardpower, sc);
}
if (sc->sc_initvalue != -1)
hpcio_portwrite(sc->sc_hc, sc->sc_port,
sc->sc_initvalue ? sc->sc_on : sc->sc_off);
printf("\n");
}
int
pwctl_hook(void *ctx, int type, long id, void *msg)
{
struct pwctl_softc *sc = ctx;
DPRINTF(("pwctl hook: port %d %s(%d)", sc->sc_port,
msg ? "ON" : "OFF", msg ? sc->sc_on : sc->sc_off));
hpcio_portwrite(sc->sc_hc, sc->sc_port,
msg ? sc->sc_on : sc->sc_off);
return (0);
}
int
pwctl_ghook(void *ctx, int type, long id, void *msg)
{
struct pwctl_softc *sc = ctx;
if (CONFIG_HOOK_VALUEP(msg))
return (1);
*(int*)msg = hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on;
DPRINTF(("pwctl ghook: port %d %s(%d)", sc->sc_port,
*(int*)msg? "ON" : "OFF", *(int*)msg ? sc->sc_on : sc->sc_off));
return (0);
}
int
pwctl_hardpower(void *ctx, int type, long id, void *msg)
{
struct pwctl_softc *sc = ctx;
int why =(int)msg;
VPRINTF(("pwctl hardpower: port %d %s: %s(%d)\n", sc->sc_port,
why == PWR_RESUME? "resume"
: why == PWR_SUSPEND? "suspend" : "standby",
sc->sc_save == sc->sc_on ? "on": "off", sc->sc_save));
switch (why) {
case PWR_STANDBY:
break;
case PWR_SUSPEND:
sc->sc_save = hpcio_portread(sc->sc_hc, sc->sc_port);
hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_off);
break;
case PWR_RESUME:
hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_save);
break;
}
return (0);
}