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/* $OpenBSD: acpi_x86.c,v 1.3 2022/02/14 23:42:37 kettenis Exp $ */
/*
* Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com>
* Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/pool.h>
#include <sys/fcntl.h>
#include <sys/ioccom.h>
#include <sys/event.h>
#include <sys/signalvar.h>
#include <sys/proc.h>
#include <sys/kthread.h>
#include <sys/sched.h>
#include <sys/reboot.h>
#include <sys/sysctl.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <sys/sensors.h>
#include <sys/timetc.h>
#ifdef HIBERNATE
#include <sys/hibernate.h>
#endif
#include <machine/conf.h>
#include <machine/cpufunc.h>
#include <machine/bus.h>
#include <dev/pci/pcivar.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/amltypes.h>
#include <dev/acpi/acpidev.h>
#include <dev/acpi/dsdt.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/ppbreg.h>
#include <dev/pci/pciidevar.h>
#include <machine/apmvar.h>
#define APMUNIT(dev) (minor(dev)&0xf0)
#define APMDEV(dev) (minor(dev)&0x0f)
#define APMDEV_NORMAL 0
#define APMDEV_CTL 8
#include "wd.h"
#include "wsdisplay.h"
#include "softraid.h"
int
sleep_showstate(void *v, int sleepmode)
{
struct acpi_softc *sc = v;
switch (sleepmode) {
case SLEEP_SUSPEND:
sc->sc_state = ACPI_STATE_S3;
break;
case SLEEP_HIBERNATE:
sc->sc_state = ACPI_STATE_S4;
break;
default:
return (EOPNOTSUPP);
}
if (sc->sc_sleeptype[sc->sc_state].slp_typa == -1 ||
sc->sc_sleeptype[sc->sc_state].slp_typb == -1) {
printf("%s: state S%d unavailable\n",
sc->sc_dev.dv_xname, sc->sc_state);
return (EOPNOTSUPP);
}
/* 1st suspend AML step: _TTS(tostate) */
if (aml_node_setval(sc, sc->sc_tts, sc->sc_state) != 0)
return (EINVAL);
acpi_indicator(sc, ACPI_SST_WAKING); /* blink */
return 0;
}
int
sleep_setstate(void *v)
{
struct acpi_softc *sc = v;
/* 2nd suspend AML step: _PTS(tostate) */
if (aml_node_setval(sc, sc->sc_pts, sc->sc_state) != 0)
return (EINVAL);
acpi_indicator(sc, ACPI_SST_WAKING); /* blink */
return 0;
}
void
gosleep(void *v)
{
struct acpi_softc *sc = v;
acpibtn_enable_psw(); /* enable _LID for wakeup */
acpi_indicator(sc, ACPI_SST_SLEEPING);
/* 3rd suspend AML step: _GTS(tostate) */
aml_node_setval(sc, sc->sc_gts, sc->sc_state);
/* Clear fixed event status */
acpi_write_pmreg(sc, ACPIREG_PM1_STS, 0, ACPI_PM1_ALL_STS);
/* Enable wake GPEs */
acpi_disable_allgpes(sc);
acpi_enable_wakegpes(sc, sc->sc_state);
/* Sleep */
acpi_sleep_cpu(sc, sc->sc_state);
/* Resume */
acpi_resume_cpu(sc, sc->sc_state);
sc->sc_state = ACPI_STATE_S0;
}
int
sleep_resume(void *v)
{
struct acpi_softc *sc = v;
/* 3rd resume AML step: _TTS(runstate) */
if (aml_node_setval(sc, sc->sc_tts, sc->sc_state) != 0)
return (EINVAL);
acpi_indicator(sc, ACPI_SST_WAKING); /* blink */
return 0;
}
void
suspend_finish(void *v)
{
struct acpi_softc *sc = v;
extern int lid_action;
acpi_record_event(sc, APM_NORMAL_RESUME);
acpi_indicator(sc, ACPI_SST_WORKING);
/* If we woke up but all the lids are closed, go back to sleep */
if (acpibtn_numopenlids() == 0 && lid_action != 0)
acpi_addtask(sc, acpi_sleep_task, sc, sc->sc_state);
}
void
disable_lid_wakeups(void *v)
{
acpibtn_disable_psw(); /* disable _LID for wakeup */
}
void
display_suspend(void *v)
{
#if NWSDISPLAY > 0
struct acpi_softc *sc = v;
/*
* Temporarily release the lock to prevent the X server from
* blocking on setting the display brightness.
*/
rw_exit_write(&sc->sc_lck);
wsdisplay_suspend();
rw_enter_write(&sc->sc_lck);
#endif /* NWSDISPLAY > 0 */
}
void
display_resume(void *v)
{
#if NWSDISPLAY > 0
struct acpi_softc *sc = v;
rw_exit_write(&sc->sc_lck);
wsdisplay_resume();
rw_enter_write(&sc->sc_lck);
#endif /* NWSDISPLAY > 0 */
}
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