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Listen for "suspend button" events and do a suspend request to hpcapm when 

we receive such event.

No objection on port-hpcarm.
This commit is contained in:
peter 2006-10-07 14:02:09 +00:00
parent c0a37e6e11
commit 58b4265bc6
1 changed files with 100 additions and 2 deletions
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102
sys/arch/hpcarm/dev/j720pwr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: j720pwr.c,v 1.2 2006/06/27 14:36:50 peter Exp $ */
/* $NetBSD: j720pwr.c,v 1.3 2006/10/07 14:02:09 peter Exp $ */
/*-
* Copyright (c) 2002, 2006 The NetBSD Foundation, Inc.
@ -39,7 +39,7 @@
/* Jornada 720 power management. */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: j720pwr.c,v 1.2 2006/06/27 14:36:50 peter Exp $");
__KERNEL_RCSID(0, "$NetBSD: j720pwr.c,v 1.3 2006/10/07 14:02:09 peter Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -72,11 +72,18 @@ struct j720pwr_softc {
struct device sc_dev;
struct j720ssp_softc *sc_ssp;
volatile int sc_state;
#define J720PWR_POWEROFF 0x01
#define J720PWR_SLEEPING 0x02
};
static int j720pwr_match(struct device *, struct cfdata *, void *);
static void j720pwr_attach(struct device *, struct device *, void *);
static void j720pwr_sleep(void *);
static int j720pwr_suspend_hook(void *, int, long, void *);
static int j720pwr_event_hook(void *, int, long, void *);
static int j720pwr_apm_getpower_hook(void *, int, long, void *);
static int j720pwr_get_battery(struct j720pwr_softc *);
static int j720pwr_get_ac_status(struct j720pwr_softc *);
@ -120,10 +127,17 @@ static void
j720pwr_attach(struct device *parent, struct device *self, void *aux)
{
struct j720pwr_softc *sc = (struct j720pwr_softc *)self;
extern void (*__sleep_func)(void *);
extern void *__sleep_ctx;
printf("\n");
sc->sc_ssp = (struct j720ssp_softc *)parent;
sc->sc_state = 0;
/* Register apm sleep function. */
__sleep_func = j720pwr_sleep;
__sleep_ctx = sc;
/* Battery status query hook. */
config_hook(CONFIG_HOOK_GET, CONFIG_HOOK_BATTERYVAL,
@ -137,10 +151,94 @@ j720pwr_attach(struct device *parent, struct device *self, void *aux)
config_hook(CONFIG_HOOK_GET, CONFIG_HOOK_ACADAPTER,
CONFIG_HOOK_EXCLUSIVE, j720pwr_apm_getpower_hook, sc);
/* Suspend/resume button hook. */
config_hook(CONFIG_HOOK_BUTTONEVENT,
CONFIG_HOOK_BUTTONEVENT_POWER,
CONFIG_HOOK_SHARE, j720pwr_suspend_hook, sc);
/* Receive suspend/resume events. */
config_hook(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_HARDPOWER,
CONFIG_HOOK_SHARE, j720pwr_event_hook, sc);
/* Attach hpcapm. */
config_found_ia(self, "hpcapmif", NULL, NULL);
}
static void
j720pwr_sleep(void *ctx)
{
struct j720pwr_softc *sc = ctx;
struct j720ssp_softc *ssp = sc->sc_ssp;
uint32_t oldfer;
/* Disable falling-edge detect on all GPIO ports, except keyboard. */
oldfer = bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER);
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER, 1 << 0);
while (sc->sc_state & J720PWR_POWEROFF) {
/*
* Just sleep here until the poweroff bit gets unset.
* We need to wait here because when machine_sleep() returns
* hpcapm(4) assumes that we are "resuming".
*/
(void)tsleep(&sc->sc_state, PWAIT, "j720slp", 0);
}
/* Restore previous FER value. */
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER, oldfer);
}
static int
j720pwr_suspend_hook(void *ctx, int type, long id, void *msg)
{
struct j720pwr_softc *sc = ctx;
if (type != CONFIG_HOOK_BUTTONEVENT ||
id != CONFIG_HOOK_BUTTONEVENT_POWER)
return EINVAL;
if ((sc->sc_state & (J720PWR_POWEROFF | J720PWR_SLEEPING)) == 0) {
sc->sc_state |= J720PWR_POWEROFF;
} else if ((sc->sc_state & (J720PWR_POWEROFF | J720PWR_SLEEPING)) ==
(J720PWR_POWEROFF | J720PWR_SLEEPING)) {
sc->sc_state &= ~J720PWR_POWEROFF;
wakeup(&sc->sc_state);
} else {
DPRINTF(("j720pwr_suspend_hook: busy\n"));
return EBUSY;
}
config_hook_call(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_SUSPENDREQ, NULL);
return 0;
}
static int
j720pwr_event_hook(void *ctx, int type, long id, void *msg)
{
struct j720pwr_softc *sc = ctx;
int event = (int)msg;
if (type != CONFIG_HOOK_PMEVENT ||
id != CONFIG_HOOK_PMEVENT_HARDPOWER)
return EINVAL;
switch (event) {
case PWR_SUSPEND:
sc->sc_state |= (J720PWR_SLEEPING | J720PWR_POWEROFF);
break;
case PWR_RESUME:
sc->sc_state &= ~(J720PWR_SLEEPING | J720PWR_POWEROFF);
break;
default:
return EINVAL;
}
return 0;
}
static int
j720pwr_apm_getpower_hook(void *ctx, int type, long id, void *msg)
{