diff --git a/sys/compat/linuxkpi/common/include/linux/suspend.h b/sys/compat/linuxkpi/common/include/linux/suspend.h index 5c15b0619bd0..8458a6f6d4c5 100644 --- a/sys/compat/linuxkpi/common/include/linux/suspend.h +++ b/sys/compat/linuxkpi/common/include/linux/suspend.h @@ -1,12 +1,19 @@ /* Public domain. */ #ifndef _LINUXKPI_LINUX_SUSPEND_H_ #define _LINUXKPI_LINUX_SUSPEND_H_ +typedef int suspend_state_t; + +extern suspend_state_t pm_suspend_target_state; + +#define PM_SUSPEND_ON 0 +#define PM_SUSPEND_TO_IDLE 1 + static inline int pm_suspend_via_firmware() { return 0; } #endif /* _LINUXKPI_LINUX_SUSPEND_H_ */ diff --git a/sys/compat/linuxkpi/common/src/linux_acpi.c b/sys/compat/linuxkpi/common/src/linux_acpi.c index 5eb60941abac..e092481ff979 100644 --- a/sys/compat/linuxkpi/common/src/linux_acpi.c +++ b/sys/compat/linuxkpi/common/src/linux_acpi.c @@ -1,243 +1,246 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2018 Johannes Lundberg * Copyright (c) 2020 Vladimir Kondratyev * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $FreeBSD$ */ #include "opt_acpi.h" #include #include #include #include #include #include #include +#include #include #include #define ACPI_AC_CLASS "ac_adapter" ACPI_MODULE_NAME("linux_acpi") enum { LINUX_ACPI_ACAD, LINUX_ACPI_VIDEO, LINUX_ACPI_TAGS /* must be last */ }; _Static_assert(LINUX_ACPI_TAGS <= LINUX_NOTIFY_TAGS, "Not enough space for tags in notifier_block structure"); #ifdef DEV_ACPI +suspend_state_t pm_suspend_target_state = PM_SUSPEND_ON; + static uint32_t linux_acpi_target_sleep_state = ACPI_STATE_S0; static eventhandler_tag resume_tag; static eventhandler_tag suspend_tag; ACPI_HANDLE bsd_acpi_get_handle(device_t bsddev) { return (acpi_get_handle(bsddev)); } bool acpi_check_dsm(ACPI_HANDLE handle, const char *uuid, int rev, uint64_t funcs) { if (funcs == 0) return (false); /* * From ACPI 6.3 spec 9.1.1: * Bit 0 indicates whether there is support for any functions other * than function 0 for the specified UUID and Revision ID. If set to * zero, no functions are supported (other than function zero) for the * specified UUID and Revision ID. */ funcs |= 1 << 0; return ((acpi_DSMQuery(handle, uuid, rev) & funcs) == funcs); } ACPI_OBJECT * acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const char *uuid, int rev, int func, ACPI_OBJECT *argv4, ACPI_OBJECT_TYPE type) { ACPI_BUFFER buf; return (ACPI_SUCCESS(acpi_EvaluateDSMTyped(handle, uuid, rev, func, argv4, &buf, type)) ? (ACPI_OBJECT *)buf.Pointer : NULL); } static void linux_handle_power_suspend_event(void *arg __unused) { /* * Only support S3 for now. * acpi_sleep_event isn't always called so we use power_suspend_early * instead which means we don't know what state we're switching to. * TODO: Make acpi_sleep_event consistent */ linux_acpi_target_sleep_state = ACPI_STATE_S3; } static void linux_handle_power_resume_event(void *arg __unused) { linux_acpi_target_sleep_state = ACPI_STATE_S0; } static void linux_handle_acpi_acad_event(void *arg, int data) { struct notifier_block *nb = arg; /* * Event type information is lost ATM in FreeBSD ACPI event handler. * Fortunately, drm-kmod do not distinct AC event types too, so we can * use any type e.g. ACPI_NOTIFY_BUS_CHECK that suits notifier handler. */ struct acpi_bus_event abe = { .device_class = ACPI_AC_CLASS, .type = ACPI_NOTIFY_BUS_CHECK, .data = data, }; nb->notifier_call(nb, 0, &abe); } static void linux_handle_acpi_video_event(void *arg, int type) { struct notifier_block *nb = arg; struct acpi_bus_event abe = { .device_class = ACPI_VIDEO_CLASS, .type = type, .data = 0, }; nb->notifier_call(nb, 0, &abe); } int register_acpi_notifier(struct notifier_block *nb) { nb->tags[LINUX_ACPI_ACAD] = EVENTHANDLER_REGISTER(acpi_acad_event, linux_handle_acpi_acad_event, nb, EVENTHANDLER_PRI_FIRST); nb->tags[LINUX_ACPI_VIDEO] = EVENTHANDLER_REGISTER(acpi_video_event, linux_handle_acpi_video_event, nb, EVENTHANDLER_PRI_FIRST); return (0); } int unregister_acpi_notifier(struct notifier_block *nb) { EVENTHANDLER_DEREGISTER(acpi_acad_event, nb->tags[LINUX_ACPI_ACAD]); EVENTHANDLER_DEREGISTER(acpi_video_event, nb->tags[LINUX_ACPI_VIDEO]); return (0); } uint32_t acpi_target_system_state(void) { return (linux_acpi_target_sleep_state); } static void linux_register_acpi_event_handlers(void *arg __unused) { /* * XXX johalun: acpi_{sleep,wakeup}_event can't be trusted, use * power_{suspend_early,resume} 'acpiconf -s 3' or 'zzz' will not * generate acpi_sleep_event... Lid open or wake on button generates * acpi_wakeup_event on one of my Dell laptops but not the other * (but it does power on)... is this a general thing? */ resume_tag = EVENTHANDLER_REGISTER(power_resume, linux_handle_power_resume_event, NULL, EVENTHANDLER_PRI_FIRST); suspend_tag = EVENTHANDLER_REGISTER(power_suspend_early, linux_handle_power_suspend_event, NULL, EVENTHANDLER_PRI_FIRST); } static void linux_deregister_acpi_event_handlers(void *arg __unused) { EVENTHANDLER_DEREGISTER(power_resume, resume_tag); EVENTHANDLER_DEREGISTER(power_suspend_early, suspend_tag); } SYSINIT(linux_acpi_events, SI_SUB_DRIVERS, SI_ORDER_ANY, linux_register_acpi_event_handlers, NULL); SYSUNINIT(linux_acpi_events, SI_SUB_DRIVERS, SI_ORDER_ANY, linux_deregister_acpi_event_handlers, NULL); #else /* !DEV_ACPI */ ACPI_HANDLE bsd_acpi_get_handle(device_t bsddev) { return (NULL); } bool acpi_check_dsm(ACPI_HANDLE handle, const char *uuid, int rev, uint64_t funcs) { return (false); } ACPI_OBJECT * acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const char *uuid, int rev, int func, ACPI_OBJECT *argv4, ACPI_OBJECT_TYPE type) { return (NULL); } int register_acpi_notifier(struct notifier_block *nb) { return (0); } int unregister_acpi_notifier(struct notifier_block *nb) { return (0); } uint32_t acpi_target_system_state(void) { return (ACPI_STATE_S0); } #endif /* !DEV_ACPI */