3996 lines
110 KiB
C
3996 lines
110 KiB
C
/*-
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* Copyright (c) 2000 Takanori Watanabe <takawata@jp.freebsd.org>
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* Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
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* Copyright (c) 2000, 2001 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_acpi.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/fcntl.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/ioccom.h>
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#include <sys/reboot.h>
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#include <sys/sysctl.h>
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#include <sys/ctype.h>
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#include <sys/linker.h>
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#include <sys/power.h>
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#include <sys/sbuf.h>
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#include <sys/sched.h>
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#include <sys/smp.h>
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#include <sys/timetc.h>
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#if defined(__i386__) || defined(__amd64__)
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#include <machine/pci_cfgreg.h>
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#endif
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <isa/isavar.h>
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#include <isa/pnpvar.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <contrib/dev/acpica/include/acnamesp.h>
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#include <dev/acpica/acpivar.h>
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#include <dev/acpica/acpiio.h>
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#include <vm/vm_param.h>
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static MALLOC_DEFINE(M_ACPIDEV, "acpidev", "ACPI devices");
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/* Hooks for the ACPI CA debugging infrastructure */
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#define _COMPONENT ACPI_BUS
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ACPI_MODULE_NAME("ACPI")
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static d_open_t acpiopen;
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static d_close_t acpiclose;
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static d_ioctl_t acpiioctl;
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static struct cdevsw acpi_cdevsw = {
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.d_version = D_VERSION,
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.d_open = acpiopen,
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.d_close = acpiclose,
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.d_ioctl = acpiioctl,
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.d_name = "acpi",
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};
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struct acpi_interface {
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ACPI_STRING *data;
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int num;
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};
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/* Global mutex for locking access to the ACPI subsystem. */
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struct mtx acpi_mutex;
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struct callout acpi_sleep_timer;
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/* Bitmap of device quirks. */
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int acpi_quirks;
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/* Supported sleep states. */
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static BOOLEAN acpi_sleep_states[ACPI_S_STATE_COUNT];
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static int acpi_modevent(struct module *mod, int event, void *junk);
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static int acpi_probe(device_t dev);
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static int acpi_attach(device_t dev);
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static int acpi_suspend(device_t dev);
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static int acpi_resume(device_t dev);
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static int acpi_shutdown(device_t dev);
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static device_t acpi_add_child(device_t bus, u_int order, const char *name,
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int unit);
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static int acpi_print_child(device_t bus, device_t child);
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static void acpi_probe_nomatch(device_t bus, device_t child);
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static void acpi_driver_added(device_t dev, driver_t *driver);
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static int acpi_read_ivar(device_t dev, device_t child, int index,
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uintptr_t *result);
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static int acpi_write_ivar(device_t dev, device_t child, int index,
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uintptr_t value);
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static struct resource_list *acpi_get_rlist(device_t dev, device_t child);
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static void acpi_reserve_resources(device_t dev);
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static int acpi_sysres_alloc(device_t dev);
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static int acpi_set_resource(device_t dev, device_t child, int type,
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int rid, u_long start, u_long count);
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static struct resource *acpi_alloc_resource(device_t bus, device_t child,
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int type, int *rid, u_long start, u_long end,
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u_long count, u_int flags);
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static int acpi_adjust_resource(device_t bus, device_t child, int type,
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struct resource *r, u_long start, u_long end);
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static int acpi_release_resource(device_t bus, device_t child, int type,
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int rid, struct resource *r);
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static void acpi_delete_resource(device_t bus, device_t child, int type,
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int rid);
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static uint32_t acpi_isa_get_logicalid(device_t dev);
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static int acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count);
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static char *acpi_device_id_probe(device_t bus, device_t dev, char **ids);
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static ACPI_STATUS acpi_device_eval_obj(device_t bus, device_t dev,
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ACPI_STRING pathname, ACPI_OBJECT_LIST *parameters,
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ACPI_BUFFER *ret);
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static ACPI_STATUS acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level,
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void *context, void **retval);
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static ACPI_STATUS acpi_device_scan_children(device_t bus, device_t dev,
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int max_depth, acpi_scan_cb_t user_fn, void *arg);
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static int acpi_set_powerstate(device_t child, int state);
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static int acpi_isa_pnp_probe(device_t bus, device_t child,
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struct isa_pnp_id *ids);
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static void acpi_probe_children(device_t bus);
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static void acpi_probe_order(ACPI_HANDLE handle, int *order);
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static ACPI_STATUS acpi_probe_child(ACPI_HANDLE handle, UINT32 level,
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void *context, void **status);
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static void acpi_sleep_enable(void *arg);
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static ACPI_STATUS acpi_sleep_disable(struct acpi_softc *sc);
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static ACPI_STATUS acpi_EnterSleepState(struct acpi_softc *sc, int state);
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static void acpi_shutdown_final(void *arg, int howto);
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static void acpi_enable_fixed_events(struct acpi_softc *sc);
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static BOOLEAN acpi_has_hid(ACPI_HANDLE handle);
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static void acpi_resync_clock(struct acpi_softc *sc);
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static int acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate);
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static int acpi_wake_run_prep(ACPI_HANDLE handle, int sstate);
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static int acpi_wake_prep_walk(int sstate);
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static int acpi_wake_sysctl_walk(device_t dev);
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static int acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS);
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static void acpi_system_eventhandler_sleep(void *arg, int state);
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static void acpi_system_eventhandler_wakeup(void *arg, int state);
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static int acpi_sname2sstate(const char *sname);
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static const char *acpi_sstate2sname(int sstate);
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static int acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS);
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static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS);
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static int acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS);
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static int acpi_pm_func(u_long cmd, void *arg, ...);
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static int acpi_child_location_str_method(device_t acdev, device_t child,
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char *buf, size_t buflen);
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static int acpi_child_pnpinfo_str_method(device_t acdev, device_t child,
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char *buf, size_t buflen);
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#if defined(__i386__) || defined(__amd64__)
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static void acpi_enable_pcie(void);
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#endif
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static void acpi_hint_device_unit(device_t acdev, device_t child,
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const char *name, int *unitp);
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static void acpi_reset_interfaces(device_t dev);
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static device_method_t acpi_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, acpi_probe),
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DEVMETHOD(device_attach, acpi_attach),
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DEVMETHOD(device_shutdown, acpi_shutdown),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD(device_suspend, acpi_suspend),
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DEVMETHOD(device_resume, acpi_resume),
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/* Bus interface */
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DEVMETHOD(bus_add_child, acpi_add_child),
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DEVMETHOD(bus_print_child, acpi_print_child),
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DEVMETHOD(bus_probe_nomatch, acpi_probe_nomatch),
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DEVMETHOD(bus_driver_added, acpi_driver_added),
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DEVMETHOD(bus_read_ivar, acpi_read_ivar),
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DEVMETHOD(bus_write_ivar, acpi_write_ivar),
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DEVMETHOD(bus_get_resource_list, acpi_get_rlist),
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DEVMETHOD(bus_set_resource, acpi_set_resource),
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DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
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DEVMETHOD(bus_alloc_resource, acpi_alloc_resource),
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DEVMETHOD(bus_adjust_resource, acpi_adjust_resource),
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DEVMETHOD(bus_release_resource, acpi_release_resource),
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DEVMETHOD(bus_delete_resource, acpi_delete_resource),
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DEVMETHOD(bus_child_pnpinfo_str, acpi_child_pnpinfo_str_method),
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DEVMETHOD(bus_child_location_str, acpi_child_location_str_method),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_hint_device_unit, acpi_hint_device_unit),
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DEVMETHOD(bus_get_domain, acpi_get_domain),
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/* ACPI bus */
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DEVMETHOD(acpi_id_probe, acpi_device_id_probe),
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DEVMETHOD(acpi_evaluate_object, acpi_device_eval_obj),
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DEVMETHOD(acpi_pwr_for_sleep, acpi_device_pwr_for_sleep),
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DEVMETHOD(acpi_scan_children, acpi_device_scan_children),
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/* ISA emulation */
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DEVMETHOD(isa_pnp_probe, acpi_isa_pnp_probe),
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DEVMETHOD_END
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};
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static driver_t acpi_driver = {
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"acpi",
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acpi_methods,
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sizeof(struct acpi_softc),
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};
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static devclass_t acpi_devclass;
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DRIVER_MODULE(acpi, nexus, acpi_driver, acpi_devclass, acpi_modevent, 0);
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MODULE_VERSION(acpi, 1);
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ACPI_SERIAL_DECL(acpi, "ACPI root bus");
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/* Local pools for managing system resources for ACPI child devices. */
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static struct rman acpi_rman_io, acpi_rman_mem;
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#define ACPI_MINIMUM_AWAKETIME 5
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/* Holds the description of the acpi0 device. */
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static char acpi_desc[ACPI_OEM_ID_SIZE + ACPI_OEM_TABLE_ID_SIZE + 2];
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SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RD, NULL, "ACPI debugging");
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static char acpi_ca_version[12];
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SYSCTL_STRING(_debug_acpi, OID_AUTO, acpi_ca_version, CTLFLAG_RD,
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acpi_ca_version, 0, "Version of Intel ACPI-CA");
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/*
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* Allow overriding _OSI methods.
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*/
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static char acpi_install_interface[256];
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TUNABLE_STR("hw.acpi.install_interface", acpi_install_interface,
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sizeof(acpi_install_interface));
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static char acpi_remove_interface[256];
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TUNABLE_STR("hw.acpi.remove_interface", acpi_remove_interface,
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sizeof(acpi_remove_interface));
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/* Allow users to dump Debug objects without ACPI debugger. */
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static int acpi_debug_objects;
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TUNABLE_INT("debug.acpi.enable_debug_objects", &acpi_debug_objects);
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SYSCTL_PROC(_debug_acpi, OID_AUTO, enable_debug_objects,
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CTLFLAG_RW | CTLTYPE_INT, NULL, 0, acpi_debug_objects_sysctl, "I",
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"Enable Debug objects");
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/* Allow the interpreter to ignore common mistakes in BIOS. */
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static int acpi_interpreter_slack = 1;
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TUNABLE_INT("debug.acpi.interpreter_slack", &acpi_interpreter_slack);
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SYSCTL_INT(_debug_acpi, OID_AUTO, interpreter_slack, CTLFLAG_RDTUN,
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&acpi_interpreter_slack, 1, "Turn on interpreter slack mode.");
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/* Ignore register widths set by FADT and use default widths instead. */
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static int acpi_ignore_reg_width = 1;
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TUNABLE_INT("debug.acpi.default_register_width", &acpi_ignore_reg_width);
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SYSCTL_INT(_debug_acpi, OID_AUTO, default_register_width, CTLFLAG_RDTUN,
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&acpi_ignore_reg_width, 1, "Ignore register widths set by FADT");
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#ifdef __amd64__
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/* Reset system clock while resuming. XXX Remove once tested. */
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static int acpi_reset_clock = 1;
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TUNABLE_INT("debug.acpi.reset_clock", &acpi_reset_clock);
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SYSCTL_INT(_debug_acpi, OID_AUTO, reset_clock, CTLFLAG_RW,
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&acpi_reset_clock, 1, "Reset system clock while resuming.");
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#endif
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/* Allow users to override quirks. */
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TUNABLE_INT("debug.acpi.quirks", &acpi_quirks);
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static int acpi_susp_bounce;
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SYSCTL_INT(_debug_acpi, OID_AUTO, suspend_bounce, CTLFLAG_RW,
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&acpi_susp_bounce, 0, "Don't actually suspend, just test devices.");
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/*
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* ACPI can only be loaded as a module by the loader; activating it after
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* system bootstrap time is not useful, and can be fatal to the system.
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* It also cannot be unloaded, since the entire system bus hierarchy hangs
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* off it.
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*/
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static int
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acpi_modevent(struct module *mod, int event, void *junk)
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{
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switch (event) {
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case MOD_LOAD:
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if (!cold) {
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printf("The ACPI driver cannot be loaded after boot.\n");
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return (EPERM);
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}
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break;
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case MOD_UNLOAD:
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if (!cold && power_pm_get_type() == POWER_PM_TYPE_ACPI)
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return (EBUSY);
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break;
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default:
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break;
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}
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return (0);
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}
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/*
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* Perform early initialization.
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*/
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ACPI_STATUS
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acpi_Startup(void)
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{
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static int started = 0;
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ACPI_STATUS status;
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int val;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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/* Only run the startup code once. The MADT driver also calls this. */
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if (started)
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return_VALUE (AE_OK);
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started = 1;
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/*
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* Pre-allocate space for RSDT/XSDT and DSDT tables and allow resizing
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* if more tables exist.
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*/
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if (ACPI_FAILURE(status = AcpiInitializeTables(NULL, 2, TRUE))) {
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printf("ACPI: Table initialisation failed: %s\n",
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AcpiFormatException(status));
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return_VALUE (status);
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}
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/* Set up any quirks we have for this system. */
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if (acpi_quirks == ACPI_Q_OK)
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acpi_table_quirks(&acpi_quirks);
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/* If the user manually set the disabled hint to 0, force-enable ACPI. */
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if (resource_int_value("acpi", 0, "disabled", &val) == 0 && val == 0)
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acpi_quirks &= ~ACPI_Q_BROKEN;
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if (acpi_quirks & ACPI_Q_BROKEN) {
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printf("ACPI disabled by blacklist. Contact your BIOS vendor.\n");
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status = AE_SUPPORT;
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}
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return_VALUE (status);
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}
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/*
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* Detect ACPI and perform early initialisation.
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*/
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int
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acpi_identify(void)
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{
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ACPI_TABLE_RSDP *rsdp;
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ACPI_TABLE_HEADER *rsdt;
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ACPI_PHYSICAL_ADDRESS paddr;
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struct sbuf sb;
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ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
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if (!cold)
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return (ENXIO);
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/* Check that we haven't been disabled with a hint. */
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if (resource_disabled("acpi", 0))
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return (ENXIO);
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/* Check for other PM systems. */
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if (power_pm_get_type() != POWER_PM_TYPE_NONE &&
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power_pm_get_type() != POWER_PM_TYPE_ACPI) {
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printf("ACPI identify failed, other PM system enabled.\n");
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return (ENXIO);
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}
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/* Initialize root tables. */
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if (ACPI_FAILURE(acpi_Startup())) {
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printf("ACPI: Try disabling either ACPI or apic support.\n");
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return (ENXIO);
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}
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if ((paddr = AcpiOsGetRootPointer()) == 0 ||
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(rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP))) == NULL)
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return (ENXIO);
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if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress != 0)
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paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress;
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else
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paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress;
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AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP));
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if ((rsdt = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER))) == NULL)
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return (ENXIO);
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sbuf_new(&sb, acpi_desc, sizeof(acpi_desc), SBUF_FIXEDLEN);
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sbuf_bcat(&sb, rsdt->OemId, ACPI_OEM_ID_SIZE);
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sbuf_trim(&sb);
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sbuf_putc(&sb, ' ');
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sbuf_bcat(&sb, rsdt->OemTableId, ACPI_OEM_TABLE_ID_SIZE);
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sbuf_trim(&sb);
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sbuf_finish(&sb);
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sbuf_delete(&sb);
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AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER));
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snprintf(acpi_ca_version, sizeof(acpi_ca_version), "%x", ACPI_CA_VERSION);
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return (0);
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}
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/*
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* Fetch some descriptive data from ACPI to put in our attach message.
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*/
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static int
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acpi_probe(device_t dev)
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{
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|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
device_set_desc(dev, acpi_desc);
|
|
|
|
return_VALUE (BUS_PROBE_NOWILDCARD);
|
|
}
|
|
|
|
static int
|
|
acpi_attach(device_t dev)
|
|
{
|
|
struct acpi_softc *sc;
|
|
ACPI_STATUS status;
|
|
int error, state;
|
|
UINT32 flags;
|
|
UINT8 TypeA, TypeB;
|
|
char *env;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->acpi_dev = dev;
|
|
callout_init(&sc->susp_force_to, TRUE);
|
|
|
|
error = ENXIO;
|
|
|
|
/* Initialize resource manager. */
|
|
acpi_rman_io.rm_type = RMAN_ARRAY;
|
|
acpi_rman_io.rm_start = 0;
|
|
acpi_rman_io.rm_end = 0xffff;
|
|
acpi_rman_io.rm_descr = "ACPI I/O ports";
|
|
if (rman_init(&acpi_rman_io) != 0)
|
|
panic("acpi rman_init IO ports failed");
|
|
acpi_rman_mem.rm_type = RMAN_ARRAY;
|
|
acpi_rman_mem.rm_start = 0;
|
|
acpi_rman_mem.rm_end = ~0ul;
|
|
acpi_rman_mem.rm_descr = "ACPI I/O memory addresses";
|
|
if (rman_init(&acpi_rman_mem) != 0)
|
|
panic("acpi rman_init memory failed");
|
|
|
|
/* Initialise the ACPI mutex */
|
|
mtx_init(&acpi_mutex, "ACPI global lock", NULL, MTX_DEF);
|
|
|
|
/*
|
|
* Set the globals from our tunables. This is needed because ACPI-CA
|
|
* uses UINT8 for some values and we have no tunable_byte.
|
|
*/
|
|
AcpiGbl_EnableInterpreterSlack = acpi_interpreter_slack ? TRUE : FALSE;
|
|
AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE;
|
|
AcpiGbl_UseDefaultRegisterWidths = acpi_ignore_reg_width ? TRUE : FALSE;
|
|
|
|
#ifndef ACPI_DEBUG
|
|
/*
|
|
* Disable all debugging layers and levels.
|
|
*/
|
|
AcpiDbgLayer = 0;
|
|
AcpiDbgLevel = 0;
|
|
#endif
|
|
|
|
/* Start up the ACPI CA subsystem. */
|
|
status = AcpiInitializeSubsystem();
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(dev, "Could not initialize Subsystem: %s\n",
|
|
AcpiFormatException(status));
|
|
goto out;
|
|
}
|
|
|
|
/* Override OS interfaces if the user requested. */
|
|
acpi_reset_interfaces(dev);
|
|
|
|
/* Load ACPI name space. */
|
|
status = AcpiLoadTables();
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(dev, "Could not load Namespace: %s\n",
|
|
AcpiFormatException(status));
|
|
goto out;
|
|
}
|
|
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
/* Handle MCFG table if present. */
|
|
acpi_enable_pcie();
|
|
#endif
|
|
|
|
/*
|
|
* Note that some systems (specifically, those with namespace evaluation
|
|
* issues that require the avoidance of parts of the namespace) must
|
|
* avoid running _INI and _STA on everything, as well as dodging the final
|
|
* object init pass.
|
|
*
|
|
* For these devices, we set ACPI_NO_DEVICE_INIT and ACPI_NO_OBJECT_INIT).
|
|
*
|
|
* XXX We should arrange for the object init pass after we have attached
|
|
* all our child devices, but on many systems it works here.
|
|
*/
|
|
flags = 0;
|
|
if (testenv("debug.acpi.avoid"))
|
|
flags = ACPI_NO_DEVICE_INIT | ACPI_NO_OBJECT_INIT;
|
|
|
|
/* Bring the hardware and basic handlers online. */
|
|
if (ACPI_FAILURE(status = AcpiEnableSubsystem(flags))) {
|
|
device_printf(dev, "Could not enable ACPI: %s\n",
|
|
AcpiFormatException(status));
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Call the ECDT probe function to provide EC functionality before
|
|
* the namespace has been evaluated.
|
|
*
|
|
* XXX This happens before the sysresource devices have been probed and
|
|
* attached so its resources come from nexus0. In practice, this isn't
|
|
* a problem but should be addressed eventually.
|
|
*/
|
|
acpi_ec_ecdt_probe(dev);
|
|
|
|
/* Bring device objects and regions online. */
|
|
if (ACPI_FAILURE(status = AcpiInitializeObjects(flags))) {
|
|
device_printf(dev, "Could not initialize ACPI objects: %s\n",
|
|
AcpiFormatException(status));
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Setup our sysctl tree.
|
|
*
|
|
* XXX: This doesn't check to make sure that none of these fail.
|
|
*/
|
|
sysctl_ctx_init(&sc->acpi_sysctl_ctx);
|
|
sc->acpi_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_sysctl_ctx,
|
|
SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
|
|
device_get_name(dev), CTLFLAG_RD, 0, "");
|
|
SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "supported_sleep_state", CTLTYPE_STRING | CTLFLAG_RD,
|
|
0, 0, acpi_supported_sleep_state_sysctl, "A", "");
|
|
SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "power_button_state", CTLTYPE_STRING | CTLFLAG_RW,
|
|
&sc->acpi_power_button_sx, 0, acpi_sleep_state_sysctl, "A", "");
|
|
SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "sleep_button_state", CTLTYPE_STRING | CTLFLAG_RW,
|
|
&sc->acpi_sleep_button_sx, 0, acpi_sleep_state_sysctl, "A", "");
|
|
SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "lid_switch_state", CTLTYPE_STRING | CTLFLAG_RW,
|
|
&sc->acpi_lid_switch_sx, 0, acpi_sleep_state_sysctl, "A", "");
|
|
SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "standby_state", CTLTYPE_STRING | CTLFLAG_RW,
|
|
&sc->acpi_standby_sx, 0, acpi_sleep_state_sysctl, "A", "");
|
|
SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "suspend_state", CTLTYPE_STRING | CTLFLAG_RW,
|
|
&sc->acpi_suspend_sx, 0, acpi_sleep_state_sysctl, "A", "");
|
|
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "sleep_delay", CTLFLAG_RW, &sc->acpi_sleep_delay, 0,
|
|
"sleep delay in seconds");
|
|
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "s4bios", CTLFLAG_RW, &sc->acpi_s4bios, 0, "S4BIOS mode");
|
|
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "verbose", CTLFLAG_RW, &sc->acpi_verbose, 0, "verbose mode");
|
|
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "disable_on_reboot", CTLFLAG_RW,
|
|
&sc->acpi_do_disable, 0, "Disable ACPI when rebooting/halting system");
|
|
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
|
|
OID_AUTO, "handle_reboot", CTLFLAG_RW,
|
|
&sc->acpi_handle_reboot, 0, "Use ACPI Reset Register to reboot");
|
|
|
|
/*
|
|
* Default to 1 second before sleeping to give some machines time to
|
|
* stabilize.
|
|
*/
|
|
sc->acpi_sleep_delay = 1;
|
|
if (bootverbose)
|
|
sc->acpi_verbose = 1;
|
|
if ((env = kern_getenv("hw.acpi.verbose")) != NULL) {
|
|
if (strcmp(env, "0") != 0)
|
|
sc->acpi_verbose = 1;
|
|
freeenv(env);
|
|
}
|
|
|
|
/* Only enable reboot by default if the FADT says it is available. */
|
|
if (AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER)
|
|
sc->acpi_handle_reboot = 1;
|
|
|
|
/* Only enable S4BIOS by default if the FACS says it is available. */
|
|
if (AcpiGbl_FACS->Flags & ACPI_FACS_S4_BIOS_PRESENT)
|
|
sc->acpi_s4bios = 1;
|
|
|
|
/* Probe all supported sleep states. */
|
|
acpi_sleep_states[ACPI_STATE_S0] = TRUE;
|
|
for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++)
|
|
if (ACPI_SUCCESS(AcpiEvaluateObject(ACPI_ROOT_OBJECT,
|
|
__DECONST(char *, AcpiGbl_SleepStateNames[state]), NULL, NULL)) &&
|
|
ACPI_SUCCESS(AcpiGetSleepTypeData(state, &TypeA, &TypeB)))
|
|
acpi_sleep_states[state] = TRUE;
|
|
|
|
/*
|
|
* Dispatch the default sleep state to devices. The lid switch is set
|
|
* to UNKNOWN by default to avoid surprising users.
|
|
*/
|
|
sc->acpi_power_button_sx = acpi_sleep_states[ACPI_STATE_S5] ?
|
|
ACPI_STATE_S5 : ACPI_STATE_UNKNOWN;
|
|
sc->acpi_lid_switch_sx = ACPI_STATE_UNKNOWN;
|
|
sc->acpi_standby_sx = acpi_sleep_states[ACPI_STATE_S1] ?
|
|
ACPI_STATE_S1 : ACPI_STATE_UNKNOWN;
|
|
sc->acpi_suspend_sx = acpi_sleep_states[ACPI_STATE_S3] ?
|
|
ACPI_STATE_S3 : ACPI_STATE_UNKNOWN;
|
|
|
|
/* Pick the first valid sleep state for the sleep button default. */
|
|
sc->acpi_sleep_button_sx = ACPI_STATE_UNKNOWN;
|
|
for (state = ACPI_STATE_S1; state <= ACPI_STATE_S4; state++)
|
|
if (acpi_sleep_states[state]) {
|
|
sc->acpi_sleep_button_sx = state;
|
|
break;
|
|
}
|
|
|
|
acpi_enable_fixed_events(sc);
|
|
|
|
/*
|
|
* Scan the namespace and attach/initialise children.
|
|
*/
|
|
|
|
/* Register our shutdown handler. */
|
|
EVENTHANDLER_REGISTER(shutdown_final, acpi_shutdown_final, sc,
|
|
SHUTDOWN_PRI_LAST);
|
|
|
|
/*
|
|
* Register our acpi event handlers.
|
|
* XXX should be configurable eg. via userland policy manager.
|
|
*/
|
|
EVENTHANDLER_REGISTER(acpi_sleep_event, acpi_system_eventhandler_sleep,
|
|
sc, ACPI_EVENT_PRI_LAST);
|
|
EVENTHANDLER_REGISTER(acpi_wakeup_event, acpi_system_eventhandler_wakeup,
|
|
sc, ACPI_EVENT_PRI_LAST);
|
|
|
|
/* Flag our initial states. */
|
|
sc->acpi_enabled = TRUE;
|
|
sc->acpi_sstate = ACPI_STATE_S0;
|
|
sc->acpi_sleep_disabled = TRUE;
|
|
|
|
/* Create the control device */
|
|
sc->acpi_dev_t = make_dev(&acpi_cdevsw, 0, UID_ROOT, GID_WHEEL, 0644,
|
|
"acpi");
|
|
sc->acpi_dev_t->si_drv1 = sc;
|
|
|
|
if ((error = acpi_machdep_init(dev)))
|
|
goto out;
|
|
|
|
/* Register ACPI again to pass the correct argument of pm_func. */
|
|
power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, sc);
|
|
|
|
if (!acpi_disabled("bus"))
|
|
acpi_probe_children(dev);
|
|
|
|
/* Update all GPEs and enable runtime GPEs. */
|
|
status = AcpiUpdateAllGpes();
|
|
if (ACPI_FAILURE(status))
|
|
device_printf(dev, "Could not update all GPEs: %s\n",
|
|
AcpiFormatException(status));
|
|
|
|
/* Allow sleep request after a while. */
|
|
callout_init_mtx(&acpi_sleep_timer, &acpi_mutex, 0);
|
|
callout_reset(&acpi_sleep_timer, hz * ACPI_MINIMUM_AWAKETIME,
|
|
acpi_sleep_enable, sc);
|
|
|
|
error = 0;
|
|
|
|
out:
|
|
return_VALUE (error);
|
|
}
|
|
|
|
static void
|
|
acpi_set_power_children(device_t dev, int state)
|
|
{
|
|
device_t child;
|
|
device_t *devlist;
|
|
int dstate, i, numdevs;
|
|
|
|
if (device_get_children(dev, &devlist, &numdevs) != 0)
|
|
return;
|
|
|
|
/*
|
|
* Retrieve and set D-state for the sleep state if _SxD is present.
|
|
* Skip children who aren't attached since they are handled separately.
|
|
*/
|
|
for (i = 0; i < numdevs; i++) {
|
|
child = devlist[i];
|
|
dstate = state;
|
|
if (device_is_attached(child) &&
|
|
acpi_device_pwr_for_sleep(dev, child, &dstate) == 0)
|
|
acpi_set_powerstate(child, dstate);
|
|
}
|
|
free(devlist, M_TEMP);
|
|
}
|
|
|
|
static int
|
|
acpi_suspend(device_t dev)
|
|
{
|
|
int error;
|
|
|
|
GIANT_REQUIRED;
|
|
|
|
error = bus_generic_suspend(dev);
|
|
if (error == 0)
|
|
acpi_set_power_children(dev, ACPI_STATE_D3);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
acpi_resume(device_t dev)
|
|
{
|
|
|
|
GIANT_REQUIRED;
|
|
|
|
acpi_set_power_children(dev, ACPI_STATE_D0);
|
|
|
|
return (bus_generic_resume(dev));
|
|
}
|
|
|
|
static int
|
|
acpi_shutdown(device_t dev)
|
|
{
|
|
|
|
GIANT_REQUIRED;
|
|
|
|
/* Allow children to shutdown first. */
|
|
bus_generic_shutdown(dev);
|
|
|
|
/*
|
|
* Enable any GPEs that are able to power-on the system (i.e., RTC).
|
|
* Also, disable any that are not valid for this state (most).
|
|
*/
|
|
acpi_wake_prep_walk(ACPI_STATE_S5);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle a new device being added
|
|
*/
|
|
static device_t
|
|
acpi_add_child(device_t bus, u_int order, const char *name, int unit)
|
|
{
|
|
struct acpi_device *ad;
|
|
device_t child;
|
|
|
|
if ((ad = malloc(sizeof(*ad), M_ACPIDEV, M_NOWAIT | M_ZERO)) == NULL)
|
|
return (NULL);
|
|
|
|
resource_list_init(&ad->ad_rl);
|
|
|
|
child = device_add_child_ordered(bus, order, name, unit);
|
|
if (child != NULL)
|
|
device_set_ivars(child, ad);
|
|
else
|
|
free(ad, M_ACPIDEV);
|
|
return (child);
|
|
}
|
|
|
|
static int
|
|
acpi_print_child(device_t bus, device_t child)
|
|
{
|
|
struct acpi_device *adev = device_get_ivars(child);
|
|
struct resource_list *rl = &adev->ad_rl;
|
|
int retval = 0;
|
|
|
|
retval += bus_print_child_header(bus, child);
|
|
retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx");
|
|
retval += resource_list_print_type(rl, "iomem", SYS_RES_MEMORY, "%#lx");
|
|
retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
|
|
retval += resource_list_print_type(rl, "drq", SYS_RES_DRQ, "%ld");
|
|
if (device_get_flags(child))
|
|
retval += printf(" flags %#x", device_get_flags(child));
|
|
retval += bus_print_child_domain(bus, child);
|
|
retval += bus_print_child_footer(bus, child);
|
|
|
|
return (retval);
|
|
}
|
|
|
|
/*
|
|
* If this device is an ACPI child but no one claimed it, attempt
|
|
* to power it off. We'll power it back up when a driver is added.
|
|
*
|
|
* XXX Disabled for now since many necessary devices (like fdc and
|
|
* ATA) don't claim the devices we created for them but still expect
|
|
* them to be powered up.
|
|
*/
|
|
static void
|
|
acpi_probe_nomatch(device_t bus, device_t child)
|
|
{
|
|
#ifdef ACPI_ENABLE_POWERDOWN_NODRIVER
|
|
acpi_set_powerstate(child, ACPI_STATE_D3);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* If a new driver has a chance to probe a child, first power it up.
|
|
*
|
|
* XXX Disabled for now (see acpi_probe_nomatch for details).
|
|
*/
|
|
static void
|
|
acpi_driver_added(device_t dev, driver_t *driver)
|
|
{
|
|
device_t child, *devlist;
|
|
int i, numdevs;
|
|
|
|
DEVICE_IDENTIFY(driver, dev);
|
|
if (device_get_children(dev, &devlist, &numdevs))
|
|
return;
|
|
for (i = 0; i < numdevs; i++) {
|
|
child = devlist[i];
|
|
if (device_get_state(child) == DS_NOTPRESENT) {
|
|
#ifdef ACPI_ENABLE_POWERDOWN_NODRIVER
|
|
acpi_set_powerstate(child, ACPI_STATE_D0);
|
|
if (device_probe_and_attach(child) != 0)
|
|
acpi_set_powerstate(child, ACPI_STATE_D3);
|
|
#else
|
|
device_probe_and_attach(child);
|
|
#endif
|
|
}
|
|
}
|
|
free(devlist, M_TEMP);
|
|
}
|
|
|
|
/* Location hint for devctl(8) */
|
|
static int
|
|
acpi_child_location_str_method(device_t cbdev, device_t child, char *buf,
|
|
size_t buflen)
|
|
{
|
|
struct acpi_device *dinfo = device_get_ivars(child);
|
|
char buf2[32];
|
|
int pxm;
|
|
|
|
if (dinfo->ad_handle) {
|
|
snprintf(buf, buflen, "handle=%s", acpi_name(dinfo->ad_handle));
|
|
if (ACPI_SUCCESS(acpi_GetInteger(dinfo->ad_handle, "_PXM", &pxm))) {
|
|
snprintf(buf2, 32, " _PXM=%d", pxm);
|
|
strlcat(buf, buf2, buflen);
|
|
}
|
|
} else {
|
|
snprintf(buf, buflen, "unknown");
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* PnP information for devctl(8) */
|
|
static int
|
|
acpi_child_pnpinfo_str_method(device_t cbdev, device_t child, char *buf,
|
|
size_t buflen)
|
|
{
|
|
struct acpi_device *dinfo = device_get_ivars(child);
|
|
ACPI_DEVICE_INFO *adinfo;
|
|
|
|
if (ACPI_FAILURE(AcpiGetObjectInfo(dinfo->ad_handle, &adinfo))) {
|
|
snprintf(buf, buflen, "unknown");
|
|
return (0);
|
|
}
|
|
|
|
snprintf(buf, buflen, "_HID=%s _UID=%lu",
|
|
(adinfo->Valid & ACPI_VALID_HID) ?
|
|
adinfo->HardwareId.String : "none",
|
|
(adinfo->Valid & ACPI_VALID_UID) ?
|
|
strtoul(adinfo->UniqueId.String, NULL, 10) : 0UL);
|
|
AcpiOsFree(adinfo);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle per-device ivars
|
|
*/
|
|
static int
|
|
acpi_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
|
|
{
|
|
struct acpi_device *ad;
|
|
|
|
if ((ad = device_get_ivars(child)) == NULL) {
|
|
device_printf(child, "device has no ivars\n");
|
|
return (ENOENT);
|
|
}
|
|
|
|
/* ACPI and ISA compatibility ivars */
|
|
switch(index) {
|
|
case ACPI_IVAR_HANDLE:
|
|
*(ACPI_HANDLE *)result = ad->ad_handle;
|
|
break;
|
|
case ACPI_IVAR_PRIVATE:
|
|
*(void **)result = ad->ad_private;
|
|
break;
|
|
case ACPI_IVAR_FLAGS:
|
|
*(int *)result = ad->ad_flags;
|
|
break;
|
|
case ISA_IVAR_VENDORID:
|
|
case ISA_IVAR_SERIAL:
|
|
case ISA_IVAR_COMPATID:
|
|
*(int *)result = -1;
|
|
break;
|
|
case ISA_IVAR_LOGICALID:
|
|
*(int *)result = acpi_isa_get_logicalid(child);
|
|
break;
|
|
default:
|
|
return (ENOENT);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_write_ivar(device_t dev, device_t child, int index, uintptr_t value)
|
|
{
|
|
struct acpi_device *ad;
|
|
|
|
if ((ad = device_get_ivars(child)) == NULL) {
|
|
device_printf(child, "device has no ivars\n");
|
|
return (ENOENT);
|
|
}
|
|
|
|
switch(index) {
|
|
case ACPI_IVAR_HANDLE:
|
|
ad->ad_handle = (ACPI_HANDLE)value;
|
|
break;
|
|
case ACPI_IVAR_PRIVATE:
|
|
ad->ad_private = (void *)value;
|
|
break;
|
|
case ACPI_IVAR_FLAGS:
|
|
ad->ad_flags = (int)value;
|
|
break;
|
|
default:
|
|
panic("bad ivar write request (%d)", index);
|
|
return (ENOENT);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle child resource allocation/removal
|
|
*/
|
|
static struct resource_list *
|
|
acpi_get_rlist(device_t dev, device_t child)
|
|
{
|
|
struct acpi_device *ad;
|
|
|
|
ad = device_get_ivars(child);
|
|
return (&ad->ad_rl);
|
|
}
|
|
|
|
static int
|
|
acpi_match_resource_hint(device_t dev, int type, long value)
|
|
{
|
|
struct acpi_device *ad = device_get_ivars(dev);
|
|
struct resource_list *rl = &ad->ad_rl;
|
|
struct resource_list_entry *rle;
|
|
|
|
STAILQ_FOREACH(rle, rl, link) {
|
|
if (rle->type != type)
|
|
continue;
|
|
if (rle->start <= value && rle->end >= value)
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Wire device unit numbers based on resource matches in hints.
|
|
*/
|
|
static void
|
|
acpi_hint_device_unit(device_t acdev, device_t child, const char *name,
|
|
int *unitp)
|
|
{
|
|
const char *s;
|
|
long value;
|
|
int line, matches, unit;
|
|
|
|
/*
|
|
* Iterate over all the hints for the devices with the specified
|
|
* name to see if one's resources are a subset of this device.
|
|
*/
|
|
line = 0;
|
|
for (;;) {
|
|
if (resource_find_dev(&line, name, &unit, "at", NULL) != 0)
|
|
break;
|
|
|
|
/* Must have an "at" for acpi or isa. */
|
|
resource_string_value(name, unit, "at", &s);
|
|
if (!(strcmp(s, "acpi0") == 0 || strcmp(s, "acpi") == 0 ||
|
|
strcmp(s, "isa0") == 0 || strcmp(s, "isa") == 0))
|
|
continue;
|
|
|
|
/*
|
|
* Check for matching resources. We must have at least one match.
|
|
* Since I/O and memory resources cannot be shared, if we get a
|
|
* match on either of those, ignore any mismatches in IRQs or DRQs.
|
|
*
|
|
* XXX: We may want to revisit this to be more lenient and wire
|
|
* as long as it gets one match.
|
|
*/
|
|
matches = 0;
|
|
if (resource_long_value(name, unit, "port", &value) == 0) {
|
|
/*
|
|
* Floppy drive controllers are notorious for having a
|
|
* wide variety of resources not all of which include the
|
|
* first port that is specified by the hint (typically
|
|
* 0x3f0) (see the comment above fdc_isa_alloc_resources()
|
|
* in fdc_isa.c). However, they do all seem to include
|
|
* port + 2 (e.g. 0x3f2) so for a floppy device, look for
|
|
* 'value + 2' in the port resources instead of the hint
|
|
* value.
|
|
*/
|
|
if (strcmp(name, "fdc") == 0)
|
|
value += 2;
|
|
if (acpi_match_resource_hint(child, SYS_RES_IOPORT, value))
|
|
matches++;
|
|
else
|
|
continue;
|
|
}
|
|
if (resource_long_value(name, unit, "maddr", &value) == 0) {
|
|
if (acpi_match_resource_hint(child, SYS_RES_MEMORY, value))
|
|
matches++;
|
|
else
|
|
continue;
|
|
}
|
|
if (matches > 0)
|
|
goto matched;
|
|
if (resource_long_value(name, unit, "irq", &value) == 0) {
|
|
if (acpi_match_resource_hint(child, SYS_RES_IRQ, value))
|
|
matches++;
|
|
else
|
|
continue;
|
|
}
|
|
if (resource_long_value(name, unit, "drq", &value) == 0) {
|
|
if (acpi_match_resource_hint(child, SYS_RES_DRQ, value))
|
|
matches++;
|
|
else
|
|
continue;
|
|
}
|
|
|
|
matched:
|
|
if (matches > 0) {
|
|
/* We have a winner! */
|
|
*unitp = unit;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Fech the NUMA domain for the given device.
|
|
*
|
|
* If a device has a _PXM method, map that to a NUMA domain.
|
|
*
|
|
* If none is found, then it'll call the parent method.
|
|
* If there's no domain, return ENOENT.
|
|
*/
|
|
int
|
|
acpi_get_domain(device_t dev, device_t child, int *domain)
|
|
{
|
|
#if MAXMEMDOM > 1
|
|
ACPI_HANDLE h;
|
|
int d, pxm;
|
|
|
|
h = acpi_get_handle(child);
|
|
if ((h != NULL) &&
|
|
ACPI_SUCCESS(acpi_GetInteger(h, "_PXM", &pxm))) {
|
|
d = acpi_map_pxm_to_vm_domainid(pxm);
|
|
if (d < 0)
|
|
return (ENOENT);
|
|
*domain = d;
|
|
return (0);
|
|
}
|
|
#endif
|
|
/* No _PXM node; go up a level */
|
|
return (bus_generic_get_domain(dev, child, domain));
|
|
}
|
|
|
|
/*
|
|
* Pre-allocate/manage all memory and IO resources. Since rman can't handle
|
|
* duplicates, we merge any in the sysresource attach routine.
|
|
*/
|
|
static int
|
|
acpi_sysres_alloc(device_t dev)
|
|
{
|
|
struct resource *res;
|
|
struct resource_list *rl;
|
|
struct resource_list_entry *rle;
|
|
struct rman *rm;
|
|
char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL };
|
|
device_t *children;
|
|
int child_count, i;
|
|
|
|
/*
|
|
* Probe/attach any sysresource devices. This would be unnecessary if we
|
|
* had multi-pass probe/attach.
|
|
*/
|
|
if (device_get_children(dev, &children, &child_count) != 0)
|
|
return (ENXIO);
|
|
for (i = 0; i < child_count; i++) {
|
|
if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL)
|
|
device_probe_and_attach(children[i]);
|
|
}
|
|
free(children, M_TEMP);
|
|
|
|
rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
|
|
STAILQ_FOREACH(rle, rl, link) {
|
|
if (rle->res != NULL) {
|
|
device_printf(dev, "duplicate resource for %lx\n", rle->start);
|
|
continue;
|
|
}
|
|
|
|
/* Only memory and IO resources are valid here. */
|
|
switch (rle->type) {
|
|
case SYS_RES_IOPORT:
|
|
rm = &acpi_rman_io;
|
|
break;
|
|
case SYS_RES_MEMORY:
|
|
rm = &acpi_rman_mem;
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
/* Pre-allocate resource and add to our rman pool. */
|
|
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, rle->type,
|
|
&rle->rid, rle->start, rle->start + rle->count - 1, rle->count, 0);
|
|
if (res != NULL) {
|
|
rman_manage_region(rm, rman_get_start(res), rman_get_end(res));
|
|
rle->res = res;
|
|
} else
|
|
device_printf(dev, "reservation of %lx, %lx (%d) failed\n",
|
|
rle->start, rle->count, rle->type);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static char *pcilink_ids[] = { "PNP0C0F", NULL };
|
|
static char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL };
|
|
|
|
/*
|
|
* Reserve declared resources for devices found during attach once system
|
|
* resources have been allocated.
|
|
*/
|
|
static void
|
|
acpi_reserve_resources(device_t dev)
|
|
{
|
|
struct resource_list_entry *rle;
|
|
struct resource_list *rl;
|
|
struct acpi_device *ad;
|
|
struct acpi_softc *sc;
|
|
device_t *children;
|
|
int child_count, i;
|
|
|
|
sc = device_get_softc(dev);
|
|
if (device_get_children(dev, &children, &child_count) != 0)
|
|
return;
|
|
for (i = 0; i < child_count; i++) {
|
|
ad = device_get_ivars(children[i]);
|
|
rl = &ad->ad_rl;
|
|
|
|
/* Don't reserve system resources. */
|
|
if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL)
|
|
continue;
|
|
|
|
STAILQ_FOREACH(rle, rl, link) {
|
|
/*
|
|
* Don't reserve IRQ resources. There are many sticky things
|
|
* to get right otherwise (e.g. IRQs for psm, atkbd, and HPET
|
|
* when using legacy routing).
|
|
*/
|
|
if (rle->type == SYS_RES_IRQ)
|
|
continue;
|
|
|
|
/*
|
|
* Don't reserve the resource if it is already allocated.
|
|
* The acpi_ec(4) driver can allocate its resources early
|
|
* if ECDT is present.
|
|
*/
|
|
if (rle->res != NULL)
|
|
continue;
|
|
|
|
/*
|
|
* Try to reserve the resource from our parent. If this
|
|
* fails because the resource is a system resource, just
|
|
* let it be. The resource range is already reserved so
|
|
* that other devices will not use it. If the driver
|
|
* needs to allocate the resource, then
|
|
* acpi_alloc_resource() will sub-alloc from the system
|
|
* resource.
|
|
*/
|
|
resource_list_reserve(rl, dev, children[i], rle->type, &rle->rid,
|
|
rle->start, rle->end, rle->count, 0);
|
|
}
|
|
}
|
|
free(children, M_TEMP);
|
|
sc->acpi_resources_reserved = 1;
|
|
}
|
|
|
|
static int
|
|
acpi_set_resource(device_t dev, device_t child, int type, int rid,
|
|
u_long start, u_long count)
|
|
{
|
|
struct acpi_softc *sc = device_get_softc(dev);
|
|
struct acpi_device *ad = device_get_ivars(child);
|
|
struct resource_list *rl = &ad->ad_rl;
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
u_long end;
|
|
|
|
/* Ignore IRQ resources for PCI link devices. */
|
|
if (type == SYS_RES_IRQ && ACPI_ID_PROBE(dev, child, pcilink_ids) != NULL)
|
|
return (0);
|
|
|
|
/*
|
|
* Ignore most resources for PCI root bridges. Some BIOSes
|
|
* incorrectly enumerate the memory ranges they decode as plain
|
|
* memory resources instead of as ResourceProducer ranges. Other
|
|
* BIOSes incorrectly list system resource entries for I/O ranges
|
|
* under the PCI bridge. Do allow the one known-correct case on
|
|
* x86 of a PCI bridge claiming the I/O ports used for PCI config
|
|
* access.
|
|
*/
|
|
if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
|
|
if (ACPI_SUCCESS(AcpiGetObjectInfo(ad->ad_handle, &devinfo))) {
|
|
if ((devinfo->Flags & ACPI_PCI_ROOT_BRIDGE) != 0) {
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
if (!(type == SYS_RES_IOPORT && start == CONF1_ADDR_PORT))
|
|
#endif
|
|
{
|
|
AcpiOsFree(devinfo);
|
|
return (0);
|
|
}
|
|
}
|
|
AcpiOsFree(devinfo);
|
|
}
|
|
}
|
|
|
|
/* If the resource is already allocated, fail. */
|
|
if (resource_list_busy(rl, type, rid))
|
|
return (EBUSY);
|
|
|
|
/* If the resource is already reserved, release it. */
|
|
if (resource_list_reserved(rl, type, rid))
|
|
resource_list_unreserve(rl, dev, child, type, rid);
|
|
|
|
/* Add the resource. */
|
|
end = (start + count - 1);
|
|
resource_list_add(rl, type, rid, start, end, count);
|
|
|
|
/* Don't reserve resources until the system resources are allocated. */
|
|
if (!sc->acpi_resources_reserved)
|
|
return (0);
|
|
|
|
/* Don't reserve system resources. */
|
|
if (ACPI_ID_PROBE(dev, child, sysres_ids) != NULL)
|
|
return (0);
|
|
|
|
/*
|
|
* Don't reserve IRQ resources. There are many sticky things to
|
|
* get right otherwise (e.g. IRQs for psm, atkbd, and HPET when
|
|
* using legacy routing).
|
|
*/
|
|
if (type == SYS_RES_IRQ)
|
|
return (0);
|
|
|
|
/*
|
|
* Reserve the resource.
|
|
*
|
|
* XXX: Ignores failure for now. Failure here is probably a
|
|
* BIOS/firmware bug?
|
|
*/
|
|
resource_list_reserve(rl, dev, child, type, &rid, start, end, count, 0);
|
|
return (0);
|
|
}
|
|
|
|
static struct resource *
|
|
acpi_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
ACPI_RESOURCE ares;
|
|
struct acpi_device *ad;
|
|
struct resource_list_entry *rle;
|
|
struct resource_list *rl;
|
|
struct resource *res;
|
|
int isdefault = (start == 0UL && end == ~0UL);
|
|
|
|
/*
|
|
* First attempt at allocating the resource. For direct children,
|
|
* use resource_list_alloc() to handle reserved resources. For
|
|
* other devices, pass the request up to our parent.
|
|
*/
|
|
if (bus == device_get_parent(child)) {
|
|
ad = device_get_ivars(child);
|
|
rl = &ad->ad_rl;
|
|
|
|
/*
|
|
* Simulate the behavior of the ISA bus for direct children
|
|
* devices. That is, if a non-default range is specified for
|
|
* a resource that doesn't exist, use bus_set_resource() to
|
|
* add the resource before allocating it. Note that these
|
|
* resources will not be reserved.
|
|
*/
|
|
if (!isdefault && resource_list_find(rl, type, *rid) == NULL)
|
|
resource_list_add(rl, type, *rid, start, end, count);
|
|
res = resource_list_alloc(rl, bus, child, type, rid, start, end, count,
|
|
flags);
|
|
if (res != NULL && type == SYS_RES_IRQ) {
|
|
/*
|
|
* Since bus_config_intr() takes immediate effect, we cannot
|
|
* configure the interrupt associated with a device when we
|
|
* parse the resources but have to defer it until a driver
|
|
* actually allocates the interrupt via bus_alloc_resource().
|
|
*
|
|
* XXX: Should we handle the lookup failing?
|
|
*/
|
|
if (ACPI_SUCCESS(acpi_lookup_irq_resource(child, *rid, res, &ares)))
|
|
acpi_config_intr(child, &ares);
|
|
}
|
|
|
|
/*
|
|
* If this is an allocation of the "default" range for a given
|
|
* RID, fetch the exact bounds for this resource from the
|
|
* resource list entry to try to allocate the range from the
|
|
* system resource regions.
|
|
*/
|
|
if (res == NULL && isdefault) {
|
|
rle = resource_list_find(rl, type, *rid);
|
|
if (rle != NULL) {
|
|
start = rle->start;
|
|
end = rle->end;
|
|
count = rle->count;
|
|
}
|
|
}
|
|
} else
|
|
res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid,
|
|
start, end, count, flags);
|
|
|
|
/*
|
|
* If the first attempt failed and this is an allocation of a
|
|
* specific range, try to satisfy the request via a suballocation
|
|
* from our system resource regions.
|
|
*/
|
|
if (res == NULL && start + count - 1 == end)
|
|
res = acpi_alloc_sysres(child, type, rid, start, end, count, flags);
|
|
return (res);
|
|
}
|
|
|
|
/*
|
|
* Attempt to allocate a specific resource range from the system
|
|
* resource ranges. Note that we only handle memory and I/O port
|
|
* system resources.
|
|
*/
|
|
struct resource *
|
|
acpi_alloc_sysres(device_t child, int type, int *rid, u_long start, u_long end,
|
|
u_long count, u_int flags)
|
|
{
|
|
struct rman *rm;
|
|
struct resource *res;
|
|
|
|
switch (type) {
|
|
case SYS_RES_IOPORT:
|
|
rm = &acpi_rman_io;
|
|
break;
|
|
case SYS_RES_MEMORY:
|
|
rm = &acpi_rman_mem;
|
|
break;
|
|
default:
|
|
return (NULL);
|
|
}
|
|
|
|
KASSERT(start + count - 1 == end, ("wildcard resource range"));
|
|
res = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE,
|
|
child);
|
|
if (res == NULL)
|
|
return (NULL);
|
|
|
|
rman_set_rid(res, *rid);
|
|
|
|
/* If requested, activate the resource using the parent's method. */
|
|
if (flags & RF_ACTIVE)
|
|
if (bus_activate_resource(child, type, *rid, res) != 0) {
|
|
rman_release_resource(res);
|
|
return (NULL);
|
|
}
|
|
|
|
return (res);
|
|
}
|
|
|
|
static int
|
|
acpi_is_resource_managed(int type, struct resource *r)
|
|
{
|
|
|
|
/* We only handle memory and IO resources through rman. */
|
|
switch (type) {
|
|
case SYS_RES_IOPORT:
|
|
return (rman_is_region_manager(r, &acpi_rman_io));
|
|
case SYS_RES_MEMORY:
|
|
return (rman_is_region_manager(r, &acpi_rman_mem));
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_adjust_resource(device_t bus, device_t child, int type, struct resource *r,
|
|
u_long start, u_long end)
|
|
{
|
|
|
|
if (acpi_is_resource_managed(type, r))
|
|
return (rman_adjust_resource(r, start, end));
|
|
return (bus_generic_adjust_resource(bus, child, type, r, start, end));
|
|
}
|
|
|
|
static int
|
|
acpi_release_resource(device_t bus, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
int ret;
|
|
|
|
/*
|
|
* If this resource belongs to one of our internal managers,
|
|
* deactivate it and release it to the local pool.
|
|
*/
|
|
if (acpi_is_resource_managed(type, r)) {
|
|
if (rman_get_flags(r) & RF_ACTIVE) {
|
|
ret = bus_deactivate_resource(child, type, rid, r);
|
|
if (ret != 0)
|
|
return (ret);
|
|
}
|
|
return (rman_release_resource(r));
|
|
}
|
|
|
|
return (bus_generic_rl_release_resource(bus, child, type, rid, r));
|
|
}
|
|
|
|
static void
|
|
acpi_delete_resource(device_t bus, device_t child, int type, int rid)
|
|
{
|
|
struct resource_list *rl;
|
|
|
|
rl = acpi_get_rlist(bus, child);
|
|
if (resource_list_busy(rl, type, rid)) {
|
|
device_printf(bus, "delete_resource: Resource still owned by child"
|
|
" (type=%d, rid=%d)\n", type, rid);
|
|
return;
|
|
}
|
|
resource_list_unreserve(rl, bus, child, type, rid);
|
|
resource_list_delete(rl, type, rid);
|
|
}
|
|
|
|
/* Allocate an IO port or memory resource, given its GAS. */
|
|
int
|
|
acpi_bus_alloc_gas(device_t dev, int *type, int *rid, ACPI_GENERIC_ADDRESS *gas,
|
|
struct resource **res, u_int flags)
|
|
{
|
|
int error, res_type;
|
|
|
|
error = ENOMEM;
|
|
if (type == NULL || rid == NULL || gas == NULL || res == NULL)
|
|
return (EINVAL);
|
|
|
|
/* We only support memory and IO spaces. */
|
|
switch (gas->SpaceId) {
|
|
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
|
|
res_type = SYS_RES_MEMORY;
|
|
break;
|
|
case ACPI_ADR_SPACE_SYSTEM_IO:
|
|
res_type = SYS_RES_IOPORT;
|
|
break;
|
|
default:
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
/*
|
|
* If the register width is less than 8, assume the BIOS author means
|
|
* it is a bit field and just allocate a byte.
|
|
*/
|
|
if (gas->BitWidth && gas->BitWidth < 8)
|
|
gas->BitWidth = 8;
|
|
|
|
/* Validate the address after we're sure we support the space. */
|
|
if (gas->Address == 0 || gas->BitWidth == 0)
|
|
return (EINVAL);
|
|
|
|
bus_set_resource(dev, res_type, *rid, gas->Address,
|
|
gas->BitWidth / 8);
|
|
*res = bus_alloc_resource_any(dev, res_type, rid, RF_ACTIVE | flags);
|
|
if (*res != NULL) {
|
|
*type = res_type;
|
|
error = 0;
|
|
} else
|
|
bus_delete_resource(dev, res_type, *rid);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/* Probe _HID and _CID for compatible ISA PNP ids. */
|
|
static uint32_t
|
|
acpi_isa_get_logicalid(device_t dev)
|
|
{
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
ACPI_HANDLE h;
|
|
uint32_t pnpid;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
/* Fetch and validate the HID. */
|
|
if ((h = acpi_get_handle(dev)) == NULL ||
|
|
ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo)))
|
|
return_VALUE (0);
|
|
|
|
pnpid = (devinfo->Valid & ACPI_VALID_HID) != 0 &&
|
|
devinfo->HardwareId.Length >= ACPI_EISAID_STRING_SIZE ?
|
|
PNP_EISAID(devinfo->HardwareId.String) : 0;
|
|
AcpiOsFree(devinfo);
|
|
|
|
return_VALUE (pnpid);
|
|
}
|
|
|
|
static int
|
|
acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count)
|
|
{
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
ACPI_PNP_DEVICE_ID *ids;
|
|
ACPI_HANDLE h;
|
|
uint32_t *pnpid;
|
|
int i, valid;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
pnpid = cids;
|
|
|
|
/* Fetch and validate the CID */
|
|
if ((h = acpi_get_handle(dev)) == NULL ||
|
|
ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo)))
|
|
return_VALUE (0);
|
|
|
|
if ((devinfo->Valid & ACPI_VALID_CID) == 0) {
|
|
AcpiOsFree(devinfo);
|
|
return_VALUE (0);
|
|
}
|
|
|
|
if (devinfo->CompatibleIdList.Count < count)
|
|
count = devinfo->CompatibleIdList.Count;
|
|
ids = devinfo->CompatibleIdList.Ids;
|
|
for (i = 0, valid = 0; i < count; i++)
|
|
if (ids[i].Length >= ACPI_EISAID_STRING_SIZE &&
|
|
strncmp(ids[i].String, "PNP", 3) == 0) {
|
|
*pnpid++ = PNP_EISAID(ids[i].String);
|
|
valid++;
|
|
}
|
|
AcpiOsFree(devinfo);
|
|
|
|
return_VALUE (valid);
|
|
}
|
|
|
|
static char *
|
|
acpi_device_id_probe(device_t bus, device_t dev, char **ids)
|
|
{
|
|
ACPI_HANDLE h;
|
|
ACPI_OBJECT_TYPE t;
|
|
int i;
|
|
|
|
h = acpi_get_handle(dev);
|
|
if (ids == NULL || h == NULL)
|
|
return (NULL);
|
|
t = acpi_get_type(dev);
|
|
if (t != ACPI_TYPE_DEVICE && t != ACPI_TYPE_PROCESSOR)
|
|
return (NULL);
|
|
|
|
/* Try to match one of the array of IDs with a HID or CID. */
|
|
for (i = 0; ids[i] != NULL; i++) {
|
|
if (acpi_MatchHid(h, ids[i]))
|
|
return (ids[i]);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static ACPI_STATUS
|
|
acpi_device_eval_obj(device_t bus, device_t dev, ACPI_STRING pathname,
|
|
ACPI_OBJECT_LIST *parameters, ACPI_BUFFER *ret)
|
|
{
|
|
ACPI_HANDLE h;
|
|
|
|
if (dev == NULL)
|
|
h = ACPI_ROOT_OBJECT;
|
|
else if ((h = acpi_get_handle(dev)) == NULL)
|
|
return (AE_BAD_PARAMETER);
|
|
return (AcpiEvaluateObject(h, pathname, parameters, ret));
|
|
}
|
|
|
|
int
|
|
acpi_device_pwr_for_sleep(device_t bus, device_t dev, int *dstate)
|
|
{
|
|
struct acpi_softc *sc;
|
|
ACPI_HANDLE handle;
|
|
ACPI_STATUS status;
|
|
char sxd[8];
|
|
|
|
handle = acpi_get_handle(dev);
|
|
|
|
/*
|
|
* XXX If we find these devices, don't try to power them down.
|
|
* The serial and IRDA ports on my T23 hang the system when
|
|
* set to D3 and it appears that such legacy devices may
|
|
* need special handling in their drivers.
|
|
*/
|
|
if (dstate == NULL || handle == NULL ||
|
|
acpi_MatchHid(handle, "PNP0500") ||
|
|
acpi_MatchHid(handle, "PNP0501") ||
|
|
acpi_MatchHid(handle, "PNP0502") ||
|
|
acpi_MatchHid(handle, "PNP0510") ||
|
|
acpi_MatchHid(handle, "PNP0511"))
|
|
return (ENXIO);
|
|
|
|
/*
|
|
* Override next state with the value from _SxD, if present.
|
|
* Note illegal _S0D is evaluated because some systems expect this.
|
|
*/
|
|
sc = device_get_softc(bus);
|
|
snprintf(sxd, sizeof(sxd), "_S%dD", sc->acpi_sstate);
|
|
status = acpi_GetInteger(handle, sxd, dstate);
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
|
device_printf(dev, "failed to get %s on %s: %s\n", sxd,
|
|
acpi_name(handle), AcpiFormatException(status));
|
|
return (ENXIO);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* Callback arg for our implementation of walking the namespace. */
|
|
struct acpi_device_scan_ctx {
|
|
acpi_scan_cb_t user_fn;
|
|
void *arg;
|
|
ACPI_HANDLE parent;
|
|
};
|
|
|
|
static ACPI_STATUS
|
|
acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, void *arg, void **retval)
|
|
{
|
|
struct acpi_device_scan_ctx *ctx;
|
|
device_t dev, old_dev;
|
|
ACPI_STATUS status;
|
|
ACPI_OBJECT_TYPE type;
|
|
|
|
/*
|
|
* Skip this device if we think we'll have trouble with it or it is
|
|
* the parent where the scan began.
|
|
*/
|
|
ctx = (struct acpi_device_scan_ctx *)arg;
|
|
if (acpi_avoid(h) || h == ctx->parent)
|
|
return (AE_OK);
|
|
|
|
/* If this is not a valid device type (e.g., a method), skip it. */
|
|
if (ACPI_FAILURE(AcpiGetType(h, &type)))
|
|
return (AE_OK);
|
|
if (type != ACPI_TYPE_DEVICE && type != ACPI_TYPE_PROCESSOR &&
|
|
type != ACPI_TYPE_THERMAL && type != ACPI_TYPE_POWER)
|
|
return (AE_OK);
|
|
|
|
/*
|
|
* Call the user function with the current device. If it is unchanged
|
|
* afterwards, return. Otherwise, we update the handle to the new dev.
|
|
*/
|
|
old_dev = acpi_get_device(h);
|
|
dev = old_dev;
|
|
status = ctx->user_fn(h, &dev, level, ctx->arg);
|
|
if (ACPI_FAILURE(status) || old_dev == dev)
|
|
return (status);
|
|
|
|
/* Remove the old child and its connection to the handle. */
|
|
if (old_dev != NULL) {
|
|
device_delete_child(device_get_parent(old_dev), old_dev);
|
|
AcpiDetachData(h, acpi_fake_objhandler);
|
|
}
|
|
|
|
/* Recreate the handle association if the user created a device. */
|
|
if (dev != NULL)
|
|
AcpiAttachData(h, acpi_fake_objhandler, dev);
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
static ACPI_STATUS
|
|
acpi_device_scan_children(device_t bus, device_t dev, int max_depth,
|
|
acpi_scan_cb_t user_fn, void *arg)
|
|
{
|
|
ACPI_HANDLE h;
|
|
struct acpi_device_scan_ctx ctx;
|
|
|
|
if (acpi_disabled("children"))
|
|
return (AE_OK);
|
|
|
|
if (dev == NULL)
|
|
h = ACPI_ROOT_OBJECT;
|
|
else if ((h = acpi_get_handle(dev)) == NULL)
|
|
return (AE_BAD_PARAMETER);
|
|
ctx.user_fn = user_fn;
|
|
ctx.arg = arg;
|
|
ctx.parent = h;
|
|
return (AcpiWalkNamespace(ACPI_TYPE_ANY, h, max_depth,
|
|
acpi_device_scan_cb, NULL, &ctx, NULL));
|
|
}
|
|
|
|
/*
|
|
* Even though ACPI devices are not PCI, we use the PCI approach for setting
|
|
* device power states since it's close enough to ACPI.
|
|
*/
|
|
static int
|
|
acpi_set_powerstate(device_t child, int state)
|
|
{
|
|
ACPI_HANDLE h;
|
|
ACPI_STATUS status;
|
|
|
|
h = acpi_get_handle(child);
|
|
if (state < ACPI_STATE_D0 || state > ACPI_D_STATES_MAX)
|
|
return (EINVAL);
|
|
if (h == NULL)
|
|
return (0);
|
|
|
|
/* Ignore errors if the power methods aren't present. */
|
|
status = acpi_pwr_switch_consumer(h, state);
|
|
if (ACPI_SUCCESS(status)) {
|
|
if (bootverbose)
|
|
device_printf(child, "set ACPI power state D%d on %s\n",
|
|
state, acpi_name(h));
|
|
} else if (status != AE_NOT_FOUND)
|
|
device_printf(child,
|
|
"failed to set ACPI power state D%d on %s: %s\n", state,
|
|
acpi_name(h), AcpiFormatException(status));
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_isa_pnp_probe(device_t bus, device_t child, struct isa_pnp_id *ids)
|
|
{
|
|
int result, cid_count, i;
|
|
uint32_t lid, cids[8];
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
/*
|
|
* ISA-style drivers attached to ACPI may persist and
|
|
* probe manually if we return ENOENT. We never want
|
|
* that to happen, so don't ever return it.
|
|
*/
|
|
result = ENXIO;
|
|
|
|
/* Scan the supplied IDs for a match */
|
|
lid = acpi_isa_get_logicalid(child);
|
|
cid_count = acpi_isa_get_compatid(child, cids, 8);
|
|
while (ids && ids->ip_id) {
|
|
if (lid == ids->ip_id) {
|
|
result = 0;
|
|
goto out;
|
|
}
|
|
for (i = 0; i < cid_count; i++) {
|
|
if (cids[i] == ids->ip_id) {
|
|
result = 0;
|
|
goto out;
|
|
}
|
|
}
|
|
ids++;
|
|
}
|
|
|
|
out:
|
|
if (result == 0 && ids->ip_desc)
|
|
device_set_desc(child, ids->ip_desc);
|
|
|
|
return_VALUE (result);
|
|
}
|
|
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
/*
|
|
* Look for a MCFG table. If it is present, use the settings for
|
|
* domain (segment) 0 to setup PCI config space access via the memory
|
|
* map.
|
|
*/
|
|
static void
|
|
acpi_enable_pcie(void)
|
|
{
|
|
ACPI_TABLE_HEADER *hdr;
|
|
ACPI_MCFG_ALLOCATION *alloc, *end;
|
|
ACPI_STATUS status;
|
|
|
|
status = AcpiGetTable(ACPI_SIG_MCFG, 1, &hdr);
|
|
if (ACPI_FAILURE(status))
|
|
return;
|
|
|
|
end = (ACPI_MCFG_ALLOCATION *)((char *)hdr + hdr->Length);
|
|
alloc = (ACPI_MCFG_ALLOCATION *)((ACPI_TABLE_MCFG *)hdr + 1);
|
|
while (alloc < end) {
|
|
if (alloc->PciSegment == 0) {
|
|
pcie_cfgregopen(alloc->Address, alloc->StartBusNumber,
|
|
alloc->EndBusNumber);
|
|
return;
|
|
}
|
|
alloc++;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Scan all of the ACPI namespace and attach child devices.
|
|
*
|
|
* We should only expect to find devices in the \_PR, \_TZ, \_SI, and
|
|
* \_SB scopes, and \_PR and \_TZ became obsolete in the ACPI 2.0 spec.
|
|
* However, in violation of the spec, some systems place their PCI link
|
|
* devices in \, so we have to walk the whole namespace. We check the
|
|
* type of namespace nodes, so this should be ok.
|
|
*/
|
|
static void
|
|
acpi_probe_children(device_t bus)
|
|
{
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
/*
|
|
* Scan the namespace and insert placeholders for all the devices that
|
|
* we find. We also probe/attach any early devices.
|
|
*
|
|
* Note that we use AcpiWalkNamespace rather than AcpiGetDevices because
|
|
* we want to create nodes for all devices, not just those that are
|
|
* currently present. (This assumes that we don't want to create/remove
|
|
* devices as they appear, which might be smarter.)
|
|
*/
|
|
ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "namespace scan\n"));
|
|
AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 100, acpi_probe_child,
|
|
NULL, bus, NULL);
|
|
|
|
/* Pre-allocate resources for our rman from any sysresource devices. */
|
|
acpi_sysres_alloc(bus);
|
|
|
|
/* Reserve resources already allocated to children. */
|
|
acpi_reserve_resources(bus);
|
|
|
|
/* Create any static children by calling device identify methods. */
|
|
ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n"));
|
|
bus_generic_probe(bus);
|
|
|
|
/* Probe/attach all children, created statically and from the namespace. */
|
|
ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "acpi bus_generic_attach\n"));
|
|
bus_generic_attach(bus);
|
|
|
|
/* Attach wake sysctls. */
|
|
acpi_wake_sysctl_walk(bus);
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "done attaching children\n"));
|
|
return_VOID;
|
|
}
|
|
|
|
/*
|
|
* Determine the probe order for a given device.
|
|
*/
|
|
static void
|
|
acpi_probe_order(ACPI_HANDLE handle, int *order)
|
|
{
|
|
ACPI_OBJECT_TYPE type;
|
|
|
|
/*
|
|
* 0. CPUs
|
|
* 1. I/O port and memory system resource holders
|
|
* 2. Clocks and timers (to handle early accesses)
|
|
* 3. Embedded controllers (to handle early accesses)
|
|
* 4. PCI Link Devices
|
|
*/
|
|
AcpiGetType(handle, &type);
|
|
if (type == ACPI_TYPE_PROCESSOR)
|
|
*order = 0;
|
|
else if (acpi_MatchHid(handle, "PNP0C01") ||
|
|
acpi_MatchHid(handle, "PNP0C02"))
|
|
*order = 1;
|
|
else if (acpi_MatchHid(handle, "PNP0100") ||
|
|
acpi_MatchHid(handle, "PNP0103") ||
|
|
acpi_MatchHid(handle, "PNP0B00"))
|
|
*order = 2;
|
|
else if (acpi_MatchHid(handle, "PNP0C09"))
|
|
*order = 3;
|
|
else if (acpi_MatchHid(handle, "PNP0C0F"))
|
|
*order = 4;
|
|
}
|
|
|
|
/*
|
|
* Evaluate a child device and determine whether we might attach a device to
|
|
* it.
|
|
*/
|
|
static ACPI_STATUS
|
|
acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status)
|
|
{
|
|
struct acpi_prw_data prw;
|
|
ACPI_OBJECT_TYPE type;
|
|
ACPI_HANDLE h;
|
|
device_t bus, child;
|
|
char *handle_str;
|
|
int order;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
if (acpi_disabled("children"))
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
/* Skip this device if we think we'll have trouble with it. */
|
|
if (acpi_avoid(handle))
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
bus = (device_t)context;
|
|
if (ACPI_SUCCESS(AcpiGetType(handle, &type))) {
|
|
handle_str = acpi_name(handle);
|
|
switch (type) {
|
|
case ACPI_TYPE_DEVICE:
|
|
/*
|
|
* Since we scan from \, be sure to skip system scope objects.
|
|
* \_SB_ and \_TZ_ are defined in ACPICA as devices to work around
|
|
* BIOS bugs. For example, \_SB_ is to allow \_SB_._INI to be run
|
|
* during the intialization and \_TZ_ is to support Notify() on it.
|
|
*/
|
|
if (strcmp(handle_str, "\\_SB_") == 0 ||
|
|
strcmp(handle_str, "\\_TZ_") == 0)
|
|
break;
|
|
if (acpi_parse_prw(handle, &prw) == 0)
|
|
AcpiSetupGpeForWake(handle, prw.gpe_handle, prw.gpe_bit);
|
|
|
|
/*
|
|
* Ignore devices that do not have a _HID or _CID. They should
|
|
* be discovered by other buses (e.g. the PCI bus driver).
|
|
*/
|
|
if (!acpi_has_hid(handle))
|
|
break;
|
|
/* FALLTHROUGH */
|
|
case ACPI_TYPE_PROCESSOR:
|
|
case ACPI_TYPE_THERMAL:
|
|
case ACPI_TYPE_POWER:
|
|
/*
|
|
* Create a placeholder device for this node. Sort the
|
|
* placeholder so that the probe/attach passes will run
|
|
* breadth-first. Orders less than ACPI_DEV_BASE_ORDER
|
|
* are reserved for special objects (i.e., system
|
|
* resources).
|
|
*/
|
|
ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "scanning '%s'\n", handle_str));
|
|
order = level * 10 + ACPI_DEV_BASE_ORDER;
|
|
acpi_probe_order(handle, &order);
|
|
child = BUS_ADD_CHILD(bus, order, NULL, -1);
|
|
if (child == NULL)
|
|
break;
|
|
|
|
/* Associate the handle with the device_t and vice versa. */
|
|
acpi_set_handle(child, handle);
|
|
AcpiAttachData(handle, acpi_fake_objhandler, child);
|
|
|
|
/*
|
|
* Check that the device is present. If it's not present,
|
|
* leave it disabled (so that we have a device_t attached to
|
|
* the handle, but we don't probe it).
|
|
*
|
|
* XXX PCI link devices sometimes report "present" but not
|
|
* "functional" (i.e. if disabled). Go ahead and probe them
|
|
* anyway since we may enable them later.
|
|
*/
|
|
if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child)) {
|
|
/* Never disable PCI link devices. */
|
|
if (acpi_MatchHid(handle, "PNP0C0F"))
|
|
break;
|
|
/*
|
|
* Docking stations should remain enabled since the system
|
|
* may be undocked at boot.
|
|
*/
|
|
if (ACPI_SUCCESS(AcpiGetHandle(handle, "_DCK", &h)))
|
|
break;
|
|
|
|
device_disable(child);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Get the device's resource settings and attach them.
|
|
* Note that if the device has _PRS but no _CRS, we need
|
|
* to decide when it's appropriate to try to configure the
|
|
* device. Ignore the return value here; it's OK for the
|
|
* device not to have any resources.
|
|
*/
|
|
acpi_parse_resources(child, handle, &acpi_res_parse_set, NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* AcpiAttachData() requires an object handler but never uses it. This is a
|
|
* placeholder object handler so we can store a device_t in an ACPI_HANDLE.
|
|
*/
|
|
void
|
|
acpi_fake_objhandler(ACPI_HANDLE h, void *data)
|
|
{
|
|
}
|
|
|
|
static void
|
|
acpi_shutdown_final(void *arg, int howto)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)arg;
|
|
register_t intr;
|
|
ACPI_STATUS status;
|
|
|
|
/*
|
|
* XXX Shutdown code should only run on the BSP (cpuid 0).
|
|
* Some chipsets do not power off the system correctly if called from
|
|
* an AP.
|
|
*/
|
|
if ((howto & RB_POWEROFF) != 0) {
|
|
status = AcpiEnterSleepStatePrep(ACPI_STATE_S5);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n",
|
|
AcpiFormatException(status));
|
|
return;
|
|
}
|
|
device_printf(sc->acpi_dev, "Powering system off\n");
|
|
intr = intr_disable();
|
|
status = AcpiEnterSleepState(ACPI_STATE_S5);
|
|
if (ACPI_FAILURE(status)) {
|
|
intr_restore(intr);
|
|
device_printf(sc->acpi_dev, "power-off failed - %s\n",
|
|
AcpiFormatException(status));
|
|
} else {
|
|
DELAY(1000000);
|
|
intr_restore(intr);
|
|
device_printf(sc->acpi_dev, "power-off failed - timeout\n");
|
|
}
|
|
} else if ((howto & RB_HALT) == 0 && sc->acpi_handle_reboot) {
|
|
/* Reboot using the reset register. */
|
|
status = AcpiReset();
|
|
if (ACPI_SUCCESS(status)) {
|
|
DELAY(1000000);
|
|
device_printf(sc->acpi_dev, "reset failed - timeout\n");
|
|
} else if (status != AE_NOT_EXIST)
|
|
device_printf(sc->acpi_dev, "reset failed - %s\n",
|
|
AcpiFormatException(status));
|
|
} else if (sc->acpi_do_disable && panicstr == NULL) {
|
|
/*
|
|
* Only disable ACPI if the user requested. On some systems, writing
|
|
* the disable value to SMI_CMD hangs the system.
|
|
*/
|
|
device_printf(sc->acpi_dev, "Shutting down\n");
|
|
AcpiTerminate();
|
|
}
|
|
}
|
|
|
|
static void
|
|
acpi_enable_fixed_events(struct acpi_softc *sc)
|
|
{
|
|
static int first_time = 1;
|
|
|
|
/* Enable and clear fixed events and install handlers. */
|
|
if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) {
|
|
AcpiClearEvent(ACPI_EVENT_POWER_BUTTON);
|
|
AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON,
|
|
acpi_event_power_button_sleep, sc);
|
|
if (first_time)
|
|
device_printf(sc->acpi_dev, "Power Button (fixed)\n");
|
|
}
|
|
if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
|
|
AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON);
|
|
AcpiInstallFixedEventHandler(ACPI_EVENT_SLEEP_BUTTON,
|
|
acpi_event_sleep_button_sleep, sc);
|
|
if (first_time)
|
|
device_printf(sc->acpi_dev, "Sleep Button (fixed)\n");
|
|
}
|
|
|
|
first_time = 0;
|
|
}
|
|
|
|
/*
|
|
* Returns true if the device is actually present and should
|
|
* be attached to. This requires the present, enabled, UI-visible
|
|
* and diagnostics-passed bits to be set.
|
|
*/
|
|
BOOLEAN
|
|
acpi_DeviceIsPresent(device_t dev)
|
|
{
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
ACPI_HANDLE h;
|
|
BOOLEAN present;
|
|
|
|
if ((h = acpi_get_handle(dev)) == NULL ||
|
|
ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo)))
|
|
return (FALSE);
|
|
|
|
/* If no _STA method, must be present */
|
|
present = (devinfo->Valid & ACPI_VALID_STA) == 0 ||
|
|
ACPI_DEVICE_PRESENT(devinfo->CurrentStatus) ? TRUE : FALSE;
|
|
|
|
AcpiOsFree(devinfo);
|
|
return (present);
|
|
}
|
|
|
|
/*
|
|
* Returns true if the battery is actually present and inserted.
|
|
*/
|
|
BOOLEAN
|
|
acpi_BatteryIsPresent(device_t dev)
|
|
{
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
ACPI_HANDLE h;
|
|
BOOLEAN present;
|
|
|
|
if ((h = acpi_get_handle(dev)) == NULL ||
|
|
ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo)))
|
|
return (FALSE);
|
|
|
|
/* If no _STA method, must be present */
|
|
present = (devinfo->Valid & ACPI_VALID_STA) == 0 ||
|
|
ACPI_BATTERY_PRESENT(devinfo->CurrentStatus) ? TRUE : FALSE;
|
|
|
|
AcpiOsFree(devinfo);
|
|
return (present);
|
|
}
|
|
|
|
/*
|
|
* Returns true if a device has at least one valid device ID.
|
|
*/
|
|
static BOOLEAN
|
|
acpi_has_hid(ACPI_HANDLE h)
|
|
{
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
BOOLEAN ret;
|
|
|
|
if (h == NULL ||
|
|
ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo)))
|
|
return (FALSE);
|
|
|
|
ret = FALSE;
|
|
if ((devinfo->Valid & ACPI_VALID_HID) != 0)
|
|
ret = TRUE;
|
|
else if ((devinfo->Valid & ACPI_VALID_CID) != 0)
|
|
if (devinfo->CompatibleIdList.Count > 0)
|
|
ret = TRUE;
|
|
|
|
AcpiOsFree(devinfo);
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Match a HID string against a handle
|
|
*/
|
|
BOOLEAN
|
|
acpi_MatchHid(ACPI_HANDLE h, const char *hid)
|
|
{
|
|
ACPI_DEVICE_INFO *devinfo;
|
|
BOOLEAN ret;
|
|
int i;
|
|
|
|
if (hid == NULL || h == NULL ||
|
|
ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo)))
|
|
return (FALSE);
|
|
|
|
ret = FALSE;
|
|
if ((devinfo->Valid & ACPI_VALID_HID) != 0 &&
|
|
strcmp(hid, devinfo->HardwareId.String) == 0)
|
|
ret = TRUE;
|
|
else if ((devinfo->Valid & ACPI_VALID_CID) != 0)
|
|
for (i = 0; i < devinfo->CompatibleIdList.Count; i++) {
|
|
if (strcmp(hid, devinfo->CompatibleIdList.Ids[i].String) == 0) {
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
AcpiOsFree(devinfo);
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Return the handle of a named object within our scope, ie. that of (parent)
|
|
* or one if its parents.
|
|
*/
|
|
ACPI_STATUS
|
|
acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, ACPI_HANDLE *result)
|
|
{
|
|
ACPI_HANDLE r;
|
|
ACPI_STATUS status;
|
|
|
|
/* Walk back up the tree to the root */
|
|
for (;;) {
|
|
status = AcpiGetHandle(parent, path, &r);
|
|
if (ACPI_SUCCESS(status)) {
|
|
*result = r;
|
|
return (AE_OK);
|
|
}
|
|
/* XXX Return error here? */
|
|
if (status != AE_NOT_FOUND)
|
|
return (AE_OK);
|
|
if (ACPI_FAILURE(AcpiGetParent(parent, &r)))
|
|
return (AE_NOT_FOUND);
|
|
parent = r;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Allocate a buffer with a preset data size.
|
|
*/
|
|
ACPI_BUFFER *
|
|
acpi_AllocBuffer(int size)
|
|
{
|
|
ACPI_BUFFER *buf;
|
|
|
|
if ((buf = malloc(size + sizeof(*buf), M_ACPIDEV, M_NOWAIT)) == NULL)
|
|
return (NULL);
|
|
buf->Length = size;
|
|
buf->Pointer = (void *)(buf + 1);
|
|
return (buf);
|
|
}
|
|
|
|
ACPI_STATUS
|
|
acpi_SetInteger(ACPI_HANDLE handle, char *path, UINT32 number)
|
|
{
|
|
ACPI_OBJECT arg1;
|
|
ACPI_OBJECT_LIST args;
|
|
|
|
arg1.Type = ACPI_TYPE_INTEGER;
|
|
arg1.Integer.Value = number;
|
|
args.Count = 1;
|
|
args.Pointer = &arg1;
|
|
|
|
return (AcpiEvaluateObject(handle, path, &args, NULL));
|
|
}
|
|
|
|
/*
|
|
* Evaluate a path that should return an integer.
|
|
*/
|
|
ACPI_STATUS
|
|
acpi_GetInteger(ACPI_HANDLE handle, char *path, UINT32 *number)
|
|
{
|
|
ACPI_STATUS status;
|
|
ACPI_BUFFER buf;
|
|
ACPI_OBJECT param;
|
|
|
|
if (handle == NULL)
|
|
handle = ACPI_ROOT_OBJECT;
|
|
|
|
/*
|
|
* Assume that what we've been pointed at is an Integer object, or
|
|
* a method that will return an Integer.
|
|
*/
|
|
buf.Pointer = ¶m;
|
|
buf.Length = sizeof(param);
|
|
status = AcpiEvaluateObject(handle, path, NULL, &buf);
|
|
if (ACPI_SUCCESS(status)) {
|
|
if (param.Type == ACPI_TYPE_INTEGER)
|
|
*number = param.Integer.Value;
|
|
else
|
|
status = AE_TYPE;
|
|
}
|
|
|
|
/*
|
|
* In some applications, a method that's expected to return an Integer
|
|
* may instead return a Buffer (probably to simplify some internal
|
|
* arithmetic). We'll try to fetch whatever it is, and if it's a Buffer,
|
|
* convert it into an Integer as best we can.
|
|
*
|
|
* This is a hack.
|
|
*/
|
|
if (status == AE_BUFFER_OVERFLOW) {
|
|
if ((buf.Pointer = AcpiOsAllocate(buf.Length)) == NULL) {
|
|
status = AE_NO_MEMORY;
|
|
} else {
|
|
status = AcpiEvaluateObject(handle, path, NULL, &buf);
|
|
if (ACPI_SUCCESS(status))
|
|
status = acpi_ConvertBufferToInteger(&buf, number);
|
|
AcpiOsFree(buf.Pointer);
|
|
}
|
|
}
|
|
return (status);
|
|
}
|
|
|
|
ACPI_STATUS
|
|
acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, UINT32 *number)
|
|
{
|
|
ACPI_OBJECT *p;
|
|
UINT8 *val;
|
|
int i;
|
|
|
|
p = (ACPI_OBJECT *)bufp->Pointer;
|
|
if (p->Type == ACPI_TYPE_INTEGER) {
|
|
*number = p->Integer.Value;
|
|
return (AE_OK);
|
|
}
|
|
if (p->Type != ACPI_TYPE_BUFFER)
|
|
return (AE_TYPE);
|
|
if (p->Buffer.Length > sizeof(int))
|
|
return (AE_BAD_DATA);
|
|
|
|
*number = 0;
|
|
val = p->Buffer.Pointer;
|
|
for (i = 0; i < p->Buffer.Length; i++)
|
|
*number += val[i] << (i * 8);
|
|
return (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Iterate over the elements of an a package object, calling the supplied
|
|
* function for each element.
|
|
*
|
|
* XXX possible enhancement might be to abort traversal on error.
|
|
*/
|
|
ACPI_STATUS
|
|
acpi_ForeachPackageObject(ACPI_OBJECT *pkg,
|
|
void (*func)(ACPI_OBJECT *comp, void *arg), void *arg)
|
|
{
|
|
ACPI_OBJECT *comp;
|
|
int i;
|
|
|
|
if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE)
|
|
return (AE_BAD_PARAMETER);
|
|
|
|
/* Iterate over components */
|
|
i = 0;
|
|
comp = pkg->Package.Elements;
|
|
for (; i < pkg->Package.Count; i++, comp++)
|
|
func(comp, arg);
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Find the (index)th resource object in a set.
|
|
*/
|
|
ACPI_STATUS
|
|
acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, ACPI_RESOURCE **resp)
|
|
{
|
|
ACPI_RESOURCE *rp;
|
|
int i;
|
|
|
|
rp = (ACPI_RESOURCE *)buf->Pointer;
|
|
i = index;
|
|
while (i-- > 0) {
|
|
/* Range check */
|
|
if (rp > (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length))
|
|
return (AE_BAD_PARAMETER);
|
|
|
|
/* Check for terminator */
|
|
if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0)
|
|
return (AE_NOT_FOUND);
|
|
rp = ACPI_NEXT_RESOURCE(rp);
|
|
}
|
|
if (resp != NULL)
|
|
*resp = rp;
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Append an ACPI_RESOURCE to an ACPI_BUFFER.
|
|
*
|
|
* Given a pointer to an ACPI_RESOURCE structure, expand the ACPI_BUFFER
|
|
* provided to contain it. If the ACPI_BUFFER is empty, allocate a sensible
|
|
* backing block. If the ACPI_RESOURCE is NULL, return an empty set of
|
|
* resources.
|
|
*/
|
|
#define ACPI_INITIAL_RESOURCE_BUFFER_SIZE 512
|
|
|
|
ACPI_STATUS
|
|
acpi_AppendBufferResource(ACPI_BUFFER *buf, ACPI_RESOURCE *res)
|
|
{
|
|
ACPI_RESOURCE *rp;
|
|
void *newp;
|
|
|
|
/* Initialise the buffer if necessary. */
|
|
if (buf->Pointer == NULL) {
|
|
buf->Length = ACPI_INITIAL_RESOURCE_BUFFER_SIZE;
|
|
if ((buf->Pointer = AcpiOsAllocate(buf->Length)) == NULL)
|
|
return (AE_NO_MEMORY);
|
|
rp = (ACPI_RESOURCE *)buf->Pointer;
|
|
rp->Type = ACPI_RESOURCE_TYPE_END_TAG;
|
|
rp->Length = ACPI_RS_SIZE_MIN;
|
|
}
|
|
if (res == NULL)
|
|
return (AE_OK);
|
|
|
|
/*
|
|
* Scan the current buffer looking for the terminator.
|
|
* This will either find the terminator or hit the end
|
|
* of the buffer and return an error.
|
|
*/
|
|
rp = (ACPI_RESOURCE *)buf->Pointer;
|
|
for (;;) {
|
|
/* Range check, don't go outside the buffer */
|
|
if (rp >= (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length))
|
|
return (AE_BAD_PARAMETER);
|
|
if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0)
|
|
break;
|
|
rp = ACPI_NEXT_RESOURCE(rp);
|
|
}
|
|
|
|
/*
|
|
* Check the size of the buffer and expand if required.
|
|
*
|
|
* Required size is:
|
|
* size of existing resources before terminator +
|
|
* size of new resource and header +
|
|
* size of terminator.
|
|
*
|
|
* Note that this loop should really only run once, unless
|
|
* for some reason we are stuffing a *really* huge resource.
|
|
*/
|
|
while ((((u_int8_t *)rp - (u_int8_t *)buf->Pointer) +
|
|
res->Length + ACPI_RS_SIZE_NO_DATA +
|
|
ACPI_RS_SIZE_MIN) >= buf->Length) {
|
|
if ((newp = AcpiOsAllocate(buf->Length * 2)) == NULL)
|
|
return (AE_NO_MEMORY);
|
|
bcopy(buf->Pointer, newp, buf->Length);
|
|
rp = (ACPI_RESOURCE *)((u_int8_t *)newp +
|
|
((u_int8_t *)rp - (u_int8_t *)buf->Pointer));
|
|
AcpiOsFree(buf->Pointer);
|
|
buf->Pointer = newp;
|
|
buf->Length += buf->Length;
|
|
}
|
|
|
|
/* Insert the new resource. */
|
|
bcopy(res, rp, res->Length + ACPI_RS_SIZE_NO_DATA);
|
|
|
|
/* And add the terminator. */
|
|
rp = ACPI_NEXT_RESOURCE(rp);
|
|
rp->Type = ACPI_RESOURCE_TYPE_END_TAG;
|
|
rp->Length = ACPI_RS_SIZE_MIN;
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Set interrupt model.
|
|
*/
|
|
ACPI_STATUS
|
|
acpi_SetIntrModel(int model)
|
|
{
|
|
|
|
return (acpi_SetInteger(ACPI_ROOT_OBJECT, "_PIC", model));
|
|
}
|
|
|
|
/*
|
|
* Walk subtables of a table and call a callback routine for each
|
|
* subtable. The caller should provide the first subtable and a
|
|
* pointer to the end of the table. This can be used to walk tables
|
|
* such as MADT and SRAT that use subtable entries.
|
|
*/
|
|
void
|
|
acpi_walk_subtables(void *first, void *end, acpi_subtable_handler *handler,
|
|
void *arg)
|
|
{
|
|
ACPI_SUBTABLE_HEADER *entry;
|
|
|
|
for (entry = first; (void *)entry < end; ) {
|
|
/* Avoid an infinite loop if we hit a bogus entry. */
|
|
if (entry->Length < sizeof(ACPI_SUBTABLE_HEADER))
|
|
return;
|
|
|
|
handler(entry, arg);
|
|
entry = ACPI_ADD_PTR(ACPI_SUBTABLE_HEADER, entry, entry->Length);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* DEPRECATED. This interface has serious deficiencies and will be
|
|
* removed.
|
|
*
|
|
* Immediately enter the sleep state. In the old model, acpiconf(8) ran
|
|
* rc.suspend and rc.resume so we don't have to notify devd(8) to do this.
|
|
*/
|
|
ACPI_STATUS
|
|
acpi_SetSleepState(struct acpi_softc *sc, int state)
|
|
{
|
|
static int once;
|
|
|
|
if (!once) {
|
|
device_printf(sc->acpi_dev,
|
|
"warning: acpi_SetSleepState() deprecated, need to update your software\n");
|
|
once = 1;
|
|
}
|
|
return (acpi_EnterSleepState(sc, state));
|
|
}
|
|
|
|
#if defined(__amd64__) || defined(__i386__)
|
|
static void
|
|
acpi_sleep_force_task(void *context)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)context;
|
|
|
|
if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate)))
|
|
device_printf(sc->acpi_dev, "force sleep state S%d failed\n",
|
|
sc->acpi_next_sstate);
|
|
}
|
|
|
|
static void
|
|
acpi_sleep_force(void *arg)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)arg;
|
|
|
|
device_printf(sc->acpi_dev,
|
|
"suspend request timed out, forcing sleep now\n");
|
|
/*
|
|
* XXX Suspending from callout causes freezes in DEVICE_SUSPEND().
|
|
* Suspend from acpi_task thread instead.
|
|
*/
|
|
if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER,
|
|
acpi_sleep_force_task, sc)))
|
|
device_printf(sc->acpi_dev, "AcpiOsExecute() for sleeping failed\n");
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Request that the system enter the given suspend state. All /dev/apm
|
|
* devices and devd(8) will be notified. Userland then has a chance to
|
|
* save state and acknowledge the request. The system sleeps once all
|
|
* acks are in.
|
|
*/
|
|
int
|
|
acpi_ReqSleepState(struct acpi_softc *sc, int state)
|
|
{
|
|
#if defined(__amd64__) || defined(__i386__)
|
|
struct apm_clone_data *clone;
|
|
ACPI_STATUS status;
|
|
|
|
if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX)
|
|
return (EINVAL);
|
|
if (!acpi_sleep_states[state])
|
|
return (EOPNOTSUPP);
|
|
|
|
/* If a suspend request is already in progress, just return. */
|
|
if (sc->acpi_next_sstate != 0) {
|
|
return (0);
|
|
}
|
|
|
|
/* Wait until sleep is enabled. */
|
|
while (sc->acpi_sleep_disabled) {
|
|
AcpiOsSleep(1000);
|
|
}
|
|
|
|
ACPI_LOCK(acpi);
|
|
|
|
sc->acpi_next_sstate = state;
|
|
|
|
/* S5 (soft-off) should be entered directly with no waiting. */
|
|
if (state == ACPI_STATE_S5) {
|
|
ACPI_UNLOCK(acpi);
|
|
status = acpi_EnterSleepState(sc, state);
|
|
return (ACPI_SUCCESS(status) ? 0 : ENXIO);
|
|
}
|
|
|
|
/* Record the pending state and notify all apm devices. */
|
|
STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) {
|
|
clone->notify_status = APM_EV_NONE;
|
|
if ((clone->flags & ACPI_EVF_DEVD) == 0) {
|
|
selwakeuppri(&clone->sel_read, PZERO);
|
|
KNOTE_LOCKED(&clone->sel_read.si_note, 0);
|
|
}
|
|
}
|
|
|
|
/* If devd(8) is not running, immediately enter the sleep state. */
|
|
if (!devctl_process_running()) {
|
|
ACPI_UNLOCK(acpi);
|
|
status = acpi_EnterSleepState(sc, state);
|
|
return (ACPI_SUCCESS(status) ? 0 : ENXIO);
|
|
}
|
|
|
|
/*
|
|
* Set a timeout to fire if userland doesn't ack the suspend request
|
|
* in time. This way we still eventually go to sleep if we were
|
|
* overheating or running low on battery, even if userland is hung.
|
|
* We cancel this timeout once all userland acks are in or the
|
|
* suspend request is aborted.
|
|
*/
|
|
callout_reset(&sc->susp_force_to, 10 * hz, acpi_sleep_force, sc);
|
|
ACPI_UNLOCK(acpi);
|
|
|
|
/* Now notify devd(8) also. */
|
|
acpi_UserNotify("Suspend", ACPI_ROOT_OBJECT, state);
|
|
|
|
return (0);
|
|
#else
|
|
/* This platform does not support acpi suspend/resume. */
|
|
return (EOPNOTSUPP);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Acknowledge (or reject) a pending sleep state. The caller has
|
|
* prepared for suspend and is now ready for it to proceed. If the
|
|
* error argument is non-zero, it indicates suspend should be cancelled
|
|
* and gives an errno value describing why. Once all votes are in,
|
|
* we suspend the system.
|
|
*/
|
|
int
|
|
acpi_AckSleepState(struct apm_clone_data *clone, int error)
|
|
{
|
|
#if defined(__amd64__) || defined(__i386__)
|
|
struct acpi_softc *sc;
|
|
int ret, sleeping;
|
|
|
|
/* If no pending sleep state, return an error. */
|
|
ACPI_LOCK(acpi);
|
|
sc = clone->acpi_sc;
|
|
if (sc->acpi_next_sstate == 0) {
|
|
ACPI_UNLOCK(acpi);
|
|
return (ENXIO);
|
|
}
|
|
|
|
/* Caller wants to abort suspend process. */
|
|
if (error) {
|
|
sc->acpi_next_sstate = 0;
|
|
callout_stop(&sc->susp_force_to);
|
|
device_printf(sc->acpi_dev,
|
|
"listener on %s cancelled the pending suspend\n",
|
|
devtoname(clone->cdev));
|
|
ACPI_UNLOCK(acpi);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Mark this device as acking the suspend request. Then, walk through
|
|
* all devices, seeing if they agree yet. We only count devices that
|
|
* are writable since read-only devices couldn't ack the request.
|
|
*/
|
|
sleeping = TRUE;
|
|
clone->notify_status = APM_EV_ACKED;
|
|
STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) {
|
|
if ((clone->flags & ACPI_EVF_WRITE) != 0 &&
|
|
clone->notify_status != APM_EV_ACKED) {
|
|
sleeping = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If all devices have voted "yes", we will suspend now. */
|
|
if (sleeping)
|
|
callout_stop(&sc->susp_force_to);
|
|
ACPI_UNLOCK(acpi);
|
|
ret = 0;
|
|
if (sleeping) {
|
|
if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate)))
|
|
ret = ENODEV;
|
|
}
|
|
return (ret);
|
|
#else
|
|
/* This platform does not support acpi suspend/resume. */
|
|
return (EOPNOTSUPP);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
acpi_sleep_enable(void *arg)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)arg;
|
|
|
|
ACPI_LOCK_ASSERT(acpi);
|
|
|
|
/* Reschedule if the system is not fully up and running. */
|
|
if (!AcpiGbl_SystemAwakeAndRunning) {
|
|
callout_schedule(&acpi_sleep_timer, hz * ACPI_MINIMUM_AWAKETIME);
|
|
return;
|
|
}
|
|
|
|
sc->acpi_sleep_disabled = FALSE;
|
|
}
|
|
|
|
static ACPI_STATUS
|
|
acpi_sleep_disable(struct acpi_softc *sc)
|
|
{
|
|
ACPI_STATUS status;
|
|
|
|
/* Fail if the system is not fully up and running. */
|
|
if (!AcpiGbl_SystemAwakeAndRunning)
|
|
return (AE_ERROR);
|
|
|
|
ACPI_LOCK(acpi);
|
|
status = sc->acpi_sleep_disabled ? AE_ERROR : AE_OK;
|
|
sc->acpi_sleep_disabled = TRUE;
|
|
ACPI_UNLOCK(acpi);
|
|
|
|
return (status);
|
|
}
|
|
|
|
enum acpi_sleep_state {
|
|
ACPI_SS_NONE,
|
|
ACPI_SS_GPE_SET,
|
|
ACPI_SS_DEV_SUSPEND,
|
|
ACPI_SS_SLP_PREP,
|
|
ACPI_SS_SLEPT,
|
|
};
|
|
|
|
/*
|
|
* Enter the desired system sleep state.
|
|
*
|
|
* Currently we support S1-S5 but S4 is only S4BIOS
|
|
*/
|
|
static ACPI_STATUS
|
|
acpi_EnterSleepState(struct acpi_softc *sc, int state)
|
|
{
|
|
register_t intr;
|
|
ACPI_STATUS status;
|
|
ACPI_EVENT_STATUS power_button_status;
|
|
enum acpi_sleep_state slp_state;
|
|
int sleep_result;
|
|
|
|
ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state);
|
|
|
|
if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX)
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
if (!acpi_sleep_states[state]) {
|
|
device_printf(sc->acpi_dev, "Sleep state S%d not supported by BIOS\n",
|
|
state);
|
|
return (AE_SUPPORT);
|
|
}
|
|
|
|
/* Re-entry once we're suspending is not allowed. */
|
|
status = acpi_sleep_disable(sc);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(sc->acpi_dev,
|
|
"suspend request ignored (not ready yet)\n");
|
|
return (status);
|
|
}
|
|
|
|
if (state == ACPI_STATE_S5) {
|
|
/*
|
|
* Shut down cleanly and power off. This will call us back through the
|
|
* shutdown handlers.
|
|
*/
|
|
shutdown_nice(RB_POWEROFF);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
EVENTHANDLER_INVOKE(power_suspend);
|
|
|
|
if (smp_started) {
|
|
thread_lock(curthread);
|
|
sched_bind(curthread, 0);
|
|
thread_unlock(curthread);
|
|
}
|
|
|
|
/*
|
|
* Be sure to hold Giant across DEVICE_SUSPEND/RESUME since non-MPSAFE
|
|
* drivers need this.
|
|
*/
|
|
mtx_lock(&Giant);
|
|
|
|
slp_state = ACPI_SS_NONE;
|
|
|
|
sc->acpi_sstate = state;
|
|
|
|
/* Enable any GPEs as appropriate and requested by the user. */
|
|
acpi_wake_prep_walk(state);
|
|
slp_state = ACPI_SS_GPE_SET;
|
|
|
|
/*
|
|
* Inform all devices that we are going to sleep. If at least one
|
|
* device fails, DEVICE_SUSPEND() automatically resumes the tree.
|
|
*
|
|
* XXX Note that a better two-pass approach with a 'veto' pass
|
|
* followed by a "real thing" pass would be better, but the current
|
|
* bus interface does not provide for this.
|
|
*/
|
|
if (DEVICE_SUSPEND(root_bus) != 0) {
|
|
device_printf(sc->acpi_dev, "device_suspend failed\n");
|
|
goto backout;
|
|
}
|
|
slp_state = ACPI_SS_DEV_SUSPEND;
|
|
|
|
/* If testing device suspend only, back out of everything here. */
|
|
if (acpi_susp_bounce)
|
|
goto backout;
|
|
|
|
status = AcpiEnterSleepStatePrep(state);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n",
|
|
AcpiFormatException(status));
|
|
goto backout;
|
|
}
|
|
slp_state = ACPI_SS_SLP_PREP;
|
|
|
|
if (sc->acpi_sleep_delay > 0)
|
|
DELAY(sc->acpi_sleep_delay * 1000000);
|
|
|
|
intr = intr_disable();
|
|
if (state != ACPI_STATE_S1) {
|
|
sleep_result = acpi_sleep_machdep(sc, state);
|
|
acpi_wakeup_machdep(sc, state, sleep_result, 0);
|
|
|
|
/*
|
|
* XXX According to ACPI specification SCI_EN bit should be restored
|
|
* by ACPI platform (BIOS, firmware) to its pre-sleep state.
|
|
* Unfortunately some BIOSes fail to do that and that leads to
|
|
* unexpected and serious consequences during wake up like a system
|
|
* getting stuck in SMI handlers.
|
|
* This hack is picked up from Linux, which claims that it follows
|
|
* Windows behavior.
|
|
*/
|
|
if (sleep_result == 1 && state != ACPI_STATE_S4)
|
|
AcpiWriteBitRegister(ACPI_BITREG_SCI_ENABLE, ACPI_ENABLE_EVENT);
|
|
|
|
AcpiLeaveSleepStatePrep(state);
|
|
|
|
if (sleep_result == 1 && state == ACPI_STATE_S3) {
|
|
/*
|
|
* Prevent mis-interpretation of the wakeup by power button
|
|
* as a request for power off.
|
|
* Ideally we should post an appropriate wakeup event,
|
|
* perhaps using acpi_event_power_button_wake or alike.
|
|
*
|
|
* Clearing of power button status after wakeup is mandated
|
|
* by ACPI specification in section "Fixed Power Button".
|
|
*
|
|
* XXX As of ACPICA 20121114 AcpiGetEventStatus provides
|
|
* status as 0/1 corressponding to inactive/active despite
|
|
* its type being ACPI_EVENT_STATUS. In other words,
|
|
* we should not test for ACPI_EVENT_FLAG_SET for time being.
|
|
*/
|
|
if (ACPI_SUCCESS(AcpiGetEventStatus(ACPI_EVENT_POWER_BUTTON,
|
|
&power_button_status)) && power_button_status != 0) {
|
|
AcpiClearEvent(ACPI_EVENT_POWER_BUTTON);
|
|
device_printf(sc->acpi_dev,
|
|
"cleared fixed power button status\n");
|
|
}
|
|
}
|
|
|
|
intr_restore(intr);
|
|
|
|
/* call acpi_wakeup_machdep() again with interrupt enabled */
|
|
acpi_wakeup_machdep(sc, state, sleep_result, 1);
|
|
|
|
if (sleep_result == -1)
|
|
goto backout;
|
|
|
|
/* Re-enable ACPI hardware on wakeup from sleep state 4. */
|
|
if (state == ACPI_STATE_S4)
|
|
AcpiEnable();
|
|
} else {
|
|
status = AcpiEnterSleepState(state);
|
|
AcpiLeaveSleepStatePrep(state);
|
|
intr_restore(intr);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(sc->acpi_dev, "AcpiEnterSleepState failed - %s\n",
|
|
AcpiFormatException(status));
|
|
goto backout;
|
|
}
|
|
}
|
|
slp_state = ACPI_SS_SLEPT;
|
|
|
|
/*
|
|
* Back out state according to how far along we got in the suspend
|
|
* process. This handles both the error and success cases.
|
|
*/
|
|
backout:
|
|
if (slp_state >= ACPI_SS_GPE_SET) {
|
|
acpi_wake_prep_walk(state);
|
|
sc->acpi_sstate = ACPI_STATE_S0;
|
|
}
|
|
if (slp_state >= ACPI_SS_DEV_SUSPEND)
|
|
DEVICE_RESUME(root_bus);
|
|
if (slp_state >= ACPI_SS_SLP_PREP)
|
|
AcpiLeaveSleepState(state);
|
|
if (slp_state >= ACPI_SS_SLEPT) {
|
|
acpi_resync_clock(sc);
|
|
acpi_enable_fixed_events(sc);
|
|
}
|
|
sc->acpi_next_sstate = 0;
|
|
|
|
mtx_unlock(&Giant);
|
|
|
|
if (smp_started) {
|
|
thread_lock(curthread);
|
|
sched_unbind(curthread);
|
|
thread_unlock(curthread);
|
|
}
|
|
|
|
EVENTHANDLER_INVOKE(power_resume);
|
|
|
|
/* Allow another sleep request after a while. */
|
|
callout_schedule(&acpi_sleep_timer, hz * ACPI_MINIMUM_AWAKETIME);
|
|
|
|
/* Run /etc/rc.resume after we are back. */
|
|
if (devctl_process_running())
|
|
acpi_UserNotify("Resume", ACPI_ROOT_OBJECT, state);
|
|
|
|
return_ACPI_STATUS (status);
|
|
}
|
|
|
|
static void
|
|
acpi_resync_clock(struct acpi_softc *sc)
|
|
{
|
|
#ifdef __amd64__
|
|
if (!acpi_reset_clock)
|
|
return;
|
|
|
|
/*
|
|
* Warm up timecounter again and reset system clock.
|
|
*/
|
|
(void)timecounter->tc_get_timecount(timecounter);
|
|
(void)timecounter->tc_get_timecount(timecounter);
|
|
inittodr(time_second + sc->acpi_sleep_delay);
|
|
#endif
|
|
}
|
|
|
|
/* Enable or disable the device's wake GPE. */
|
|
int
|
|
acpi_wake_set_enable(device_t dev, int enable)
|
|
{
|
|
struct acpi_prw_data prw;
|
|
ACPI_STATUS status;
|
|
int flags;
|
|
|
|
/* Make sure the device supports waking the system and get the GPE. */
|
|
if (acpi_parse_prw(acpi_get_handle(dev), &prw) != 0)
|
|
return (ENXIO);
|
|
|
|
flags = acpi_get_flags(dev);
|
|
if (enable) {
|
|
status = AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit,
|
|
ACPI_GPE_ENABLE);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(dev, "enable wake failed\n");
|
|
return (ENXIO);
|
|
}
|
|
acpi_set_flags(dev, flags | ACPI_FLAG_WAKE_ENABLED);
|
|
} else {
|
|
status = AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit,
|
|
ACPI_GPE_DISABLE);
|
|
if (ACPI_FAILURE(status)) {
|
|
device_printf(dev, "disable wake failed\n");
|
|
return (ENXIO);
|
|
}
|
|
acpi_set_flags(dev, flags & ~ACPI_FLAG_WAKE_ENABLED);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate)
|
|
{
|
|
struct acpi_prw_data prw;
|
|
device_t dev;
|
|
|
|
/* Check that this is a wake-capable device and get its GPE. */
|
|
if (acpi_parse_prw(handle, &prw) != 0)
|
|
return (ENXIO);
|
|
dev = acpi_get_device(handle);
|
|
|
|
/*
|
|
* The destination sleep state must be less than (i.e., higher power)
|
|
* or equal to the value specified by _PRW. If this GPE cannot be
|
|
* enabled for the next sleep state, then disable it. If it can and
|
|
* the user requested it be enabled, turn on any required power resources
|
|
* and set _PSW.
|
|
*/
|
|
if (sstate > prw.lowest_wake) {
|
|
AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, ACPI_GPE_DISABLE);
|
|
if (bootverbose)
|
|
device_printf(dev, "wake_prep disabled wake for %s (S%d)\n",
|
|
acpi_name(handle), sstate);
|
|
} else if (dev && (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) != 0) {
|
|
acpi_pwr_wake_enable(handle, 1);
|
|
acpi_SetInteger(handle, "_PSW", 1);
|
|
if (bootverbose)
|
|
device_printf(dev, "wake_prep enabled for %s (S%d)\n",
|
|
acpi_name(handle), sstate);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_wake_run_prep(ACPI_HANDLE handle, int sstate)
|
|
{
|
|
struct acpi_prw_data prw;
|
|
device_t dev;
|
|
|
|
/*
|
|
* Check that this is a wake-capable device and get its GPE. Return
|
|
* now if the user didn't enable this device for wake.
|
|
*/
|
|
if (acpi_parse_prw(handle, &prw) != 0)
|
|
return (ENXIO);
|
|
dev = acpi_get_device(handle);
|
|
if (dev == NULL || (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* If this GPE couldn't be enabled for the previous sleep state, it was
|
|
* disabled before going to sleep so re-enable it. If it was enabled,
|
|
* clear _PSW and turn off any power resources it used.
|
|
*/
|
|
if (sstate > prw.lowest_wake) {
|
|
AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, ACPI_GPE_ENABLE);
|
|
if (bootverbose)
|
|
device_printf(dev, "run_prep re-enabled %s\n", acpi_name(handle));
|
|
} else {
|
|
acpi_SetInteger(handle, "_PSW", 0);
|
|
acpi_pwr_wake_enable(handle, 0);
|
|
if (bootverbose)
|
|
device_printf(dev, "run_prep cleaned up for %s\n",
|
|
acpi_name(handle));
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static ACPI_STATUS
|
|
acpi_wake_prep(ACPI_HANDLE handle, UINT32 level, void *context, void **status)
|
|
{
|
|
int sstate;
|
|
|
|
/* If suspending, run the sleep prep function, otherwise wake. */
|
|
sstate = *(int *)context;
|
|
if (AcpiGbl_SystemAwakeAndRunning)
|
|
acpi_wake_sleep_prep(handle, sstate);
|
|
else
|
|
acpi_wake_run_prep(handle, sstate);
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Walk the tree rooted at acpi0 to prep devices for suspend/resume. */
|
|
static int
|
|
acpi_wake_prep_walk(int sstate)
|
|
{
|
|
ACPI_HANDLE sb_handle;
|
|
|
|
if (ACPI_SUCCESS(AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &sb_handle)))
|
|
AcpiWalkNamespace(ACPI_TYPE_DEVICE, sb_handle, 100,
|
|
acpi_wake_prep, NULL, &sstate, NULL);
|
|
return (0);
|
|
}
|
|
|
|
/* Walk the tree rooted at acpi0 to attach per-device wake sysctls. */
|
|
static int
|
|
acpi_wake_sysctl_walk(device_t dev)
|
|
{
|
|
int error, i, numdevs;
|
|
device_t *devlist;
|
|
device_t child;
|
|
ACPI_STATUS status;
|
|
|
|
error = device_get_children(dev, &devlist, &numdevs);
|
|
if (error != 0 || numdevs == 0) {
|
|
if (numdevs == 0)
|
|
free(devlist, M_TEMP);
|
|
return (error);
|
|
}
|
|
for (i = 0; i < numdevs; i++) {
|
|
child = devlist[i];
|
|
acpi_wake_sysctl_walk(child);
|
|
if (!device_is_attached(child))
|
|
continue;
|
|
status = AcpiEvaluateObject(acpi_get_handle(child), "_PRW", NULL, NULL);
|
|
if (ACPI_SUCCESS(status)) {
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(child),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(child)), OID_AUTO,
|
|
"wake", CTLTYPE_INT | CTLFLAG_RW, child, 0,
|
|
acpi_wake_set_sysctl, "I", "Device set to wake the system");
|
|
}
|
|
}
|
|
free(devlist, M_TEMP);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* Enable or disable wake from userland. */
|
|
static int
|
|
acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int enable, error;
|
|
device_t dev;
|
|
|
|
dev = (device_t)arg1;
|
|
enable = (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) ? 1 : 0;
|
|
|
|
error = sysctl_handle_int(oidp, &enable, 0, req);
|
|
if (error != 0 || req->newptr == NULL)
|
|
return (error);
|
|
if (enable != 0 && enable != 1)
|
|
return (EINVAL);
|
|
|
|
return (acpi_wake_set_enable(dev, enable));
|
|
}
|
|
|
|
/* Parse a device's _PRW into a structure. */
|
|
int
|
|
acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw)
|
|
{
|
|
ACPI_STATUS status;
|
|
ACPI_BUFFER prw_buffer;
|
|
ACPI_OBJECT *res, *res2;
|
|
int error, i, power_count;
|
|
|
|
if (h == NULL || prw == NULL)
|
|
return (EINVAL);
|
|
|
|
/*
|
|
* The _PRW object (7.2.9) is only required for devices that have the
|
|
* ability to wake the system from a sleeping state.
|
|
*/
|
|
error = EINVAL;
|
|
prw_buffer.Pointer = NULL;
|
|
prw_buffer.Length = ACPI_ALLOCATE_BUFFER;
|
|
status = AcpiEvaluateObject(h, "_PRW", NULL, &prw_buffer);
|
|
if (ACPI_FAILURE(status))
|
|
return (ENOENT);
|
|
res = (ACPI_OBJECT *)prw_buffer.Pointer;
|
|
if (res == NULL)
|
|
return (ENOENT);
|
|
if (!ACPI_PKG_VALID(res, 2))
|
|
goto out;
|
|
|
|
/*
|
|
* Element 1 of the _PRW object:
|
|
* The lowest power system sleeping state that can be entered while still
|
|
* providing wake functionality. The sleeping state being entered must
|
|
* be less than (i.e., higher power) or equal to this value.
|
|
*/
|
|
if (acpi_PkgInt32(res, 1, &prw->lowest_wake) != 0)
|
|
goto out;
|
|
|
|
/*
|
|
* Element 0 of the _PRW object:
|
|
*/
|
|
switch (res->Package.Elements[0].Type) {
|
|
case ACPI_TYPE_INTEGER:
|
|
/*
|
|
* If the data type of this package element is numeric, then this
|
|
* _PRW package element is the bit index in the GPEx_EN, in the
|
|
* GPE blocks described in the FADT, of the enable bit that is
|
|
* enabled for the wake event.
|
|
*/
|
|
prw->gpe_handle = NULL;
|
|
prw->gpe_bit = res->Package.Elements[0].Integer.Value;
|
|
error = 0;
|
|
break;
|
|
case ACPI_TYPE_PACKAGE:
|
|
/*
|
|
* If the data type of this package element is a package, then this
|
|
* _PRW package element is itself a package containing two
|
|
* elements. The first is an object reference to the GPE Block
|
|
* device that contains the GPE that will be triggered by the wake
|
|
* event. The second element is numeric and it contains the bit
|
|
* index in the GPEx_EN, in the GPE Block referenced by the
|
|
* first element in the package, of the enable bit that is enabled for
|
|
* the wake event.
|
|
*
|
|
* For example, if this field is a package then it is of the form:
|
|
* Package() {\_SB.PCI0.ISA.GPE, 2}
|
|
*/
|
|
res2 = &res->Package.Elements[0];
|
|
if (!ACPI_PKG_VALID(res2, 2))
|
|
goto out;
|
|
prw->gpe_handle = acpi_GetReference(NULL, &res2->Package.Elements[0]);
|
|
if (prw->gpe_handle == NULL)
|
|
goto out;
|
|
if (acpi_PkgInt32(res2, 1, &prw->gpe_bit) != 0)
|
|
goto out;
|
|
error = 0;
|
|
break;
|
|
default:
|
|
goto out;
|
|
}
|
|
|
|
/* Elements 2 to N of the _PRW object are power resources. */
|
|
power_count = res->Package.Count - 2;
|
|
if (power_count > ACPI_PRW_MAX_POWERRES) {
|
|
printf("ACPI device %s has too many power resources\n", acpi_name(h));
|
|
power_count = 0;
|
|
}
|
|
prw->power_res_count = power_count;
|
|
for (i = 0; i < power_count; i++)
|
|
prw->power_res[i] = res->Package.Elements[i];
|
|
|
|
out:
|
|
if (prw_buffer.Pointer != NULL)
|
|
AcpiOsFree(prw_buffer.Pointer);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* ACPI Event Handlers
|
|
*/
|
|
|
|
/* System Event Handlers (registered by EVENTHANDLER_REGISTER) */
|
|
|
|
static void
|
|
acpi_system_eventhandler_sleep(void *arg, int state)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)arg;
|
|
int ret;
|
|
|
|
ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state);
|
|
|
|
/* Check if button action is disabled or unknown. */
|
|
if (state == ACPI_STATE_UNKNOWN)
|
|
return;
|
|
|
|
/* Request that the system prepare to enter the given suspend state. */
|
|
ret = acpi_ReqSleepState(sc, state);
|
|
if (ret != 0)
|
|
device_printf(sc->acpi_dev,
|
|
"request to enter state S%d failed (err %d)\n", state, ret);
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
static void
|
|
acpi_system_eventhandler_wakeup(void *arg, int state)
|
|
{
|
|
|
|
ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state);
|
|
|
|
/* Currently, nothing to do for wakeup. */
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
/*
|
|
* ACPICA Event Handlers (FixedEvent, also called from button notify handler)
|
|
*/
|
|
static void
|
|
acpi_invoke_sleep_eventhandler(void *context)
|
|
{
|
|
|
|
EVENTHANDLER_INVOKE(acpi_sleep_event, *(int *)context);
|
|
}
|
|
|
|
static void
|
|
acpi_invoke_wake_eventhandler(void *context)
|
|
{
|
|
|
|
EVENTHANDLER_INVOKE(acpi_wakeup_event, *(int *)context);
|
|
}
|
|
|
|
UINT32
|
|
acpi_event_power_button_sleep(void *context)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)context;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER,
|
|
acpi_invoke_sleep_eventhandler, &sc->acpi_power_button_sx)))
|
|
return_VALUE (ACPI_INTERRUPT_NOT_HANDLED);
|
|
return_VALUE (ACPI_INTERRUPT_HANDLED);
|
|
}
|
|
|
|
UINT32
|
|
acpi_event_power_button_wake(void *context)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)context;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER,
|
|
acpi_invoke_wake_eventhandler, &sc->acpi_power_button_sx)))
|
|
return_VALUE (ACPI_INTERRUPT_NOT_HANDLED);
|
|
return_VALUE (ACPI_INTERRUPT_HANDLED);
|
|
}
|
|
|
|
UINT32
|
|
acpi_event_sleep_button_sleep(void *context)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)context;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER,
|
|
acpi_invoke_sleep_eventhandler, &sc->acpi_sleep_button_sx)))
|
|
return_VALUE (ACPI_INTERRUPT_NOT_HANDLED);
|
|
return_VALUE (ACPI_INTERRUPT_HANDLED);
|
|
}
|
|
|
|
UINT32
|
|
acpi_event_sleep_button_wake(void *context)
|
|
{
|
|
struct acpi_softc *sc = (struct acpi_softc *)context;
|
|
|
|
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
|
|
|
|
if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER,
|
|
acpi_invoke_wake_eventhandler, &sc->acpi_sleep_button_sx)))
|
|
return_VALUE (ACPI_INTERRUPT_NOT_HANDLED);
|
|
return_VALUE (ACPI_INTERRUPT_HANDLED);
|
|
}
|
|
|
|
/*
|
|
* XXX This static buffer is suboptimal. There is no locking so only
|
|
* use this for single-threaded callers.
|
|
*/
|
|
char *
|
|
acpi_name(ACPI_HANDLE handle)
|
|
{
|
|
ACPI_BUFFER buf;
|
|
static char data[256];
|
|
|
|
buf.Length = sizeof(data);
|
|
buf.Pointer = data;
|
|
|
|
if (handle && ACPI_SUCCESS(AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf)))
|
|
return (data);
|
|
return ("(unknown)");
|
|
}
|
|
|
|
/*
|
|
* Debugging/bug-avoidance. Avoid trying to fetch info on various
|
|
* parts of the namespace.
|
|
*/
|
|
int
|
|
acpi_avoid(ACPI_HANDLE handle)
|
|
{
|
|
char *cp, *env, *np;
|
|
int len;
|
|
|
|
np = acpi_name(handle);
|
|
if (*np == '\\')
|
|
np++;
|
|
if ((env = kern_getenv("debug.acpi.avoid")) == NULL)
|
|
return (0);
|
|
|
|
/* Scan the avoid list checking for a match */
|
|
cp = env;
|
|
for (;;) {
|
|
while (*cp != 0 && isspace(*cp))
|
|
cp++;
|
|
if (*cp == 0)
|
|
break;
|
|
len = 0;
|
|
while (cp[len] != 0 && !isspace(cp[len]))
|
|
len++;
|
|
if (!strncmp(cp, np, len)) {
|
|
freeenv(env);
|
|
return(1);
|
|
}
|
|
cp += len;
|
|
}
|
|
freeenv(env);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Debugging/bug-avoidance. Disable ACPI subsystem components.
|
|
*/
|
|
int
|
|
acpi_disabled(char *subsys)
|
|
{
|
|
char *cp, *env;
|
|
int len;
|
|
|
|
if ((env = kern_getenv("debug.acpi.disabled")) == NULL)
|
|
return (0);
|
|
if (strcmp(env, "all") == 0) {
|
|
freeenv(env);
|
|
return (1);
|
|
}
|
|
|
|
/* Scan the disable list, checking for a match. */
|
|
cp = env;
|
|
for (;;) {
|
|
while (*cp != '\0' && isspace(*cp))
|
|
cp++;
|
|
if (*cp == '\0')
|
|
break;
|
|
len = 0;
|
|
while (cp[len] != '\0' && !isspace(cp[len]))
|
|
len++;
|
|
if (strncmp(cp, subsys, len) == 0) {
|
|
freeenv(env);
|
|
return (1);
|
|
}
|
|
cp += len;
|
|
}
|
|
freeenv(env);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Control interface.
|
|
*
|
|
* We multiplex ioctls for all participating ACPI devices here. Individual
|
|
* drivers wanting to be accessible via /dev/acpi should use the
|
|
* register/deregister interface to make their handlers visible.
|
|
*/
|
|
struct acpi_ioctl_hook
|
|
{
|
|
TAILQ_ENTRY(acpi_ioctl_hook) link;
|
|
u_long cmd;
|
|
acpi_ioctl_fn fn;
|
|
void *arg;
|
|
};
|
|
|
|
static TAILQ_HEAD(,acpi_ioctl_hook) acpi_ioctl_hooks;
|
|
static int acpi_ioctl_hooks_initted;
|
|
|
|
int
|
|
acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg)
|
|
{
|
|
struct acpi_ioctl_hook *hp;
|
|
|
|
if ((hp = malloc(sizeof(*hp), M_ACPIDEV, M_NOWAIT)) == NULL)
|
|
return (ENOMEM);
|
|
hp->cmd = cmd;
|
|
hp->fn = fn;
|
|
hp->arg = arg;
|
|
|
|
ACPI_LOCK(acpi);
|
|
if (acpi_ioctl_hooks_initted == 0) {
|
|
TAILQ_INIT(&acpi_ioctl_hooks);
|
|
acpi_ioctl_hooks_initted = 1;
|
|
}
|
|
TAILQ_INSERT_TAIL(&acpi_ioctl_hooks, hp, link);
|
|
ACPI_UNLOCK(acpi);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn)
|
|
{
|
|
struct acpi_ioctl_hook *hp;
|
|
|
|
ACPI_LOCK(acpi);
|
|
TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link)
|
|
if (hp->cmd == cmd && hp->fn == fn)
|
|
break;
|
|
|
|
if (hp != NULL) {
|
|
TAILQ_REMOVE(&acpi_ioctl_hooks, hp, link);
|
|
free(hp, M_ACPIDEV);
|
|
}
|
|
ACPI_UNLOCK(acpi);
|
|
}
|
|
|
|
static int
|
|
acpiopen(struct cdev *dev, int flag, int fmt, struct thread *td)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpiclose(struct cdev *dev, int flag, int fmt, struct thread *td)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpiioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
|
|
{
|
|
struct acpi_softc *sc;
|
|
struct acpi_ioctl_hook *hp;
|
|
int error, state;
|
|
|
|
error = 0;
|
|
hp = NULL;
|
|
sc = dev->si_drv1;
|
|
|
|
/*
|
|
* Scan the list of registered ioctls, looking for handlers.
|
|
*/
|
|
ACPI_LOCK(acpi);
|
|
if (acpi_ioctl_hooks_initted)
|
|
TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) {
|
|
if (hp->cmd == cmd)
|
|
break;
|
|
}
|
|
ACPI_UNLOCK(acpi);
|
|
if (hp)
|
|
return (hp->fn(cmd, addr, hp->arg));
|
|
|
|
/*
|
|
* Core ioctls are not permitted for non-writable user.
|
|
* Currently, other ioctls just fetch information.
|
|
* Not changing system behavior.
|
|
*/
|
|
if ((flag & FWRITE) == 0)
|
|
return (EPERM);
|
|
|
|
/* Core system ioctls. */
|
|
switch (cmd) {
|
|
case ACPIIO_REQSLPSTATE:
|
|
state = *(int *)addr;
|
|
if (state != ACPI_STATE_S5)
|
|
return (acpi_ReqSleepState(sc, state));
|
|
device_printf(sc->acpi_dev, "power off via acpi ioctl not supported\n");
|
|
error = EOPNOTSUPP;
|
|
break;
|
|
case ACPIIO_ACKSLPSTATE:
|
|
error = *(int *)addr;
|
|
error = acpi_AckSleepState(sc->acpi_clone, error);
|
|
break;
|
|
case ACPIIO_SETSLPSTATE: /* DEPRECATED */
|
|
state = *(int *)addr;
|
|
if (state < ACPI_STATE_S0 || state > ACPI_S_STATES_MAX)
|
|
return (EINVAL);
|
|
if (!acpi_sleep_states[state])
|
|
return (EOPNOTSUPP);
|
|
if (ACPI_FAILURE(acpi_SetSleepState(sc, state)))
|
|
error = ENXIO;
|
|
break;
|
|
default:
|
|
error = ENXIO;
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
acpi_sname2sstate(const char *sname)
|
|
{
|
|
int sstate;
|
|
|
|
if (toupper(sname[0]) == 'S') {
|
|
sstate = sname[1] - '0';
|
|
if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5 &&
|
|
sname[2] == '\0')
|
|
return (sstate);
|
|
} else if (strcasecmp(sname, "NONE") == 0)
|
|
return (ACPI_STATE_UNKNOWN);
|
|
return (-1);
|
|
}
|
|
|
|
static const char *
|
|
acpi_sstate2sname(int sstate)
|
|
{
|
|
static const char *snames[] = { "S0", "S1", "S2", "S3", "S4", "S5" };
|
|
|
|
if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5)
|
|
return (snames[sstate]);
|
|
else if (sstate == ACPI_STATE_UNKNOWN)
|
|
return ("NONE");
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error;
|
|
struct sbuf sb;
|
|
UINT8 state;
|
|
|
|
sbuf_new(&sb, NULL, 32, SBUF_AUTOEXTEND);
|
|
for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++)
|
|
if (acpi_sleep_states[state])
|
|
sbuf_printf(&sb, "%s ", acpi_sstate2sname(state));
|
|
sbuf_trim(&sb);
|
|
sbuf_finish(&sb);
|
|
error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
|
|
sbuf_delete(&sb);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
char sleep_state[10];
|
|
int error, new_state, old_state;
|
|
|
|
old_state = *(int *)oidp->oid_arg1;
|
|
strlcpy(sleep_state, acpi_sstate2sname(old_state), sizeof(sleep_state));
|
|
error = sysctl_handle_string(oidp, sleep_state, sizeof(sleep_state), req);
|
|
if (error == 0 && req->newptr != NULL) {
|
|
new_state = acpi_sname2sstate(sleep_state);
|
|
if (new_state < ACPI_STATE_S1)
|
|
return (EINVAL);
|
|
if (new_state < ACPI_S_STATE_COUNT && !acpi_sleep_states[new_state])
|
|
return (EOPNOTSUPP);
|
|
if (new_state != old_state)
|
|
*(int *)oidp->oid_arg1 = new_state;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/* Inform devctl(4) when we receive a Notify. */
|
|
void
|
|
acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, uint8_t notify)
|
|
{
|
|
char notify_buf[16];
|
|
ACPI_BUFFER handle_buf;
|
|
ACPI_STATUS status;
|
|
|
|
if (subsystem == NULL)
|
|
return;
|
|
|
|
handle_buf.Pointer = NULL;
|
|
handle_buf.Length = ACPI_ALLOCATE_BUFFER;
|
|
status = AcpiNsHandleToPathname(h, &handle_buf);
|
|
if (ACPI_FAILURE(status))
|
|
return;
|
|
snprintf(notify_buf, sizeof(notify_buf), "notify=0x%02x", notify);
|
|
devctl_notify("ACPI", subsystem, handle_buf.Pointer, notify_buf);
|
|
AcpiOsFree(handle_buf.Pointer);
|
|
}
|
|
|
|
#ifdef ACPI_DEBUG
|
|
/*
|
|
* Support for parsing debug options from the kernel environment.
|
|
*
|
|
* Bits may be set in the AcpiDbgLayer and AcpiDbgLevel debug registers
|
|
* by specifying the names of the bits in the debug.acpi.layer and
|
|
* debug.acpi.level environment variables. Bits may be unset by
|
|
* prefixing the bit name with !.
|
|
*/
|
|
struct debugtag
|
|
{
|
|
char *name;
|
|
UINT32 value;
|
|
};
|
|
|
|
static struct debugtag dbg_layer[] = {
|
|
{"ACPI_UTILITIES", ACPI_UTILITIES},
|
|
{"ACPI_HARDWARE", ACPI_HARDWARE},
|
|
{"ACPI_EVENTS", ACPI_EVENTS},
|
|
{"ACPI_TABLES", ACPI_TABLES},
|
|
{"ACPI_NAMESPACE", ACPI_NAMESPACE},
|
|
{"ACPI_PARSER", ACPI_PARSER},
|
|
{"ACPI_DISPATCHER", ACPI_DISPATCHER},
|
|
{"ACPI_EXECUTER", ACPI_EXECUTER},
|
|
{"ACPI_RESOURCES", ACPI_RESOURCES},
|
|
{"ACPI_CA_DEBUGGER", ACPI_CA_DEBUGGER},
|
|
{"ACPI_OS_SERVICES", ACPI_OS_SERVICES},
|
|
{"ACPI_CA_DISASSEMBLER", ACPI_CA_DISASSEMBLER},
|
|
{"ACPI_ALL_COMPONENTS", ACPI_ALL_COMPONENTS},
|
|
|
|
{"ACPI_AC_ADAPTER", ACPI_AC_ADAPTER},
|
|
{"ACPI_BATTERY", ACPI_BATTERY},
|
|
{"ACPI_BUS", ACPI_BUS},
|
|
{"ACPI_BUTTON", ACPI_BUTTON},
|
|
{"ACPI_EC", ACPI_EC},
|
|
{"ACPI_FAN", ACPI_FAN},
|
|
{"ACPI_POWERRES", ACPI_POWERRES},
|
|
{"ACPI_PROCESSOR", ACPI_PROCESSOR},
|
|
{"ACPI_THERMAL", ACPI_THERMAL},
|
|
{"ACPI_TIMER", ACPI_TIMER},
|
|
{"ACPI_ALL_DRIVERS", ACPI_ALL_DRIVERS},
|
|
{NULL, 0}
|
|
};
|
|
|
|
static struct debugtag dbg_level[] = {
|
|
{"ACPI_LV_INIT", ACPI_LV_INIT},
|
|
{"ACPI_LV_DEBUG_OBJECT", ACPI_LV_DEBUG_OBJECT},
|
|
{"ACPI_LV_INFO", ACPI_LV_INFO},
|
|
{"ACPI_LV_REPAIR", ACPI_LV_REPAIR},
|
|
{"ACPI_LV_ALL_EXCEPTIONS", ACPI_LV_ALL_EXCEPTIONS},
|
|
|
|
/* Trace verbosity level 1 [Standard Trace Level] */
|
|
{"ACPI_LV_INIT_NAMES", ACPI_LV_INIT_NAMES},
|
|
{"ACPI_LV_PARSE", ACPI_LV_PARSE},
|
|
{"ACPI_LV_LOAD", ACPI_LV_LOAD},
|
|
{"ACPI_LV_DISPATCH", ACPI_LV_DISPATCH},
|
|
{"ACPI_LV_EXEC", ACPI_LV_EXEC},
|
|
{"ACPI_LV_NAMES", ACPI_LV_NAMES},
|
|
{"ACPI_LV_OPREGION", ACPI_LV_OPREGION},
|
|
{"ACPI_LV_BFIELD", ACPI_LV_BFIELD},
|
|
{"ACPI_LV_TABLES", ACPI_LV_TABLES},
|
|
{"ACPI_LV_VALUES", ACPI_LV_VALUES},
|
|
{"ACPI_LV_OBJECTS", ACPI_LV_OBJECTS},
|
|
{"ACPI_LV_RESOURCES", ACPI_LV_RESOURCES},
|
|
{"ACPI_LV_USER_REQUESTS", ACPI_LV_USER_REQUESTS},
|
|
{"ACPI_LV_PACKAGE", ACPI_LV_PACKAGE},
|
|
{"ACPI_LV_VERBOSITY1", ACPI_LV_VERBOSITY1},
|
|
|
|
/* Trace verbosity level 2 [Function tracing and memory allocation] */
|
|
{"ACPI_LV_ALLOCATIONS", ACPI_LV_ALLOCATIONS},
|
|
{"ACPI_LV_FUNCTIONS", ACPI_LV_FUNCTIONS},
|
|
{"ACPI_LV_OPTIMIZATIONS", ACPI_LV_OPTIMIZATIONS},
|
|
{"ACPI_LV_VERBOSITY2", ACPI_LV_VERBOSITY2},
|
|
{"ACPI_LV_ALL", ACPI_LV_ALL},
|
|
|
|
/* Trace verbosity level 3 [Threading, I/O, and Interrupts] */
|
|
{"ACPI_LV_MUTEX", ACPI_LV_MUTEX},
|
|
{"ACPI_LV_THREADS", ACPI_LV_THREADS},
|
|
{"ACPI_LV_IO", ACPI_LV_IO},
|
|
{"ACPI_LV_INTERRUPTS", ACPI_LV_INTERRUPTS},
|
|
{"ACPI_LV_VERBOSITY3", ACPI_LV_VERBOSITY3},
|
|
|
|
/* Exceptionally verbose output -- also used in the global "DebugLevel" */
|
|
{"ACPI_LV_AML_DISASSEMBLE", ACPI_LV_AML_DISASSEMBLE},
|
|
{"ACPI_LV_VERBOSE_INFO", ACPI_LV_VERBOSE_INFO},
|
|
{"ACPI_LV_FULL_TABLES", ACPI_LV_FULL_TABLES},
|
|
{"ACPI_LV_EVENTS", ACPI_LV_EVENTS},
|
|
{"ACPI_LV_VERBOSE", ACPI_LV_VERBOSE},
|
|
{NULL, 0}
|
|
};
|
|
|
|
static void
|
|
acpi_parse_debug(char *cp, struct debugtag *tag, UINT32 *flag)
|
|
{
|
|
char *ep;
|
|
int i, l;
|
|
int set;
|
|
|
|
while (*cp) {
|
|
if (isspace(*cp)) {
|
|
cp++;
|
|
continue;
|
|
}
|
|
ep = cp;
|
|
while (*ep && !isspace(*ep))
|
|
ep++;
|
|
if (*cp == '!') {
|
|
set = 0;
|
|
cp++;
|
|
if (cp == ep)
|
|
continue;
|
|
} else {
|
|
set = 1;
|
|
}
|
|
l = ep - cp;
|
|
for (i = 0; tag[i].name != NULL; i++) {
|
|
if (!strncmp(cp, tag[i].name, l)) {
|
|
if (set)
|
|
*flag |= tag[i].value;
|
|
else
|
|
*flag &= ~tag[i].value;
|
|
}
|
|
}
|
|
cp = ep;
|
|
}
|
|
}
|
|
|
|
static void
|
|
acpi_set_debugging(void *junk)
|
|
{
|
|
char *layer, *level;
|
|
|
|
if (cold) {
|
|
AcpiDbgLayer = 0;
|
|
AcpiDbgLevel = 0;
|
|
}
|
|
|
|
layer = kern_getenv("debug.acpi.layer");
|
|
level = kern_getenv("debug.acpi.level");
|
|
if (layer == NULL && level == NULL)
|
|
return;
|
|
|
|
printf("ACPI set debug");
|
|
if (layer != NULL) {
|
|
if (strcmp("NONE", layer) != 0)
|
|
printf(" layer '%s'", layer);
|
|
acpi_parse_debug(layer, &dbg_layer[0], &AcpiDbgLayer);
|
|
freeenv(layer);
|
|
}
|
|
if (level != NULL) {
|
|
if (strcmp("NONE", level) != 0)
|
|
printf(" level '%s'", level);
|
|
acpi_parse_debug(level, &dbg_level[0], &AcpiDbgLevel);
|
|
freeenv(level);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
SYSINIT(acpi_debugging, SI_SUB_TUNABLES, SI_ORDER_ANY, acpi_set_debugging,
|
|
NULL);
|
|
|
|
static int
|
|
acpi_debug_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error, *dbg;
|
|
struct debugtag *tag;
|
|
struct sbuf sb;
|
|
char temp[128];
|
|
|
|
if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
|
|
return (ENOMEM);
|
|
if (strcmp(oidp->oid_arg1, "debug.acpi.layer") == 0) {
|
|
tag = &dbg_layer[0];
|
|
dbg = &AcpiDbgLayer;
|
|
} else {
|
|
tag = &dbg_level[0];
|
|
dbg = &AcpiDbgLevel;
|
|
}
|
|
|
|
/* Get old values if this is a get request. */
|
|
ACPI_SERIAL_BEGIN(acpi);
|
|
if (*dbg == 0) {
|
|
sbuf_cpy(&sb, "NONE");
|
|
} else if (req->newptr == NULL) {
|
|
for (; tag->name != NULL; tag++) {
|
|
if ((*dbg & tag->value) == tag->value)
|
|
sbuf_printf(&sb, "%s ", tag->name);
|
|
}
|
|
}
|
|
sbuf_trim(&sb);
|
|
sbuf_finish(&sb);
|
|
strlcpy(temp, sbuf_data(&sb), sizeof(temp));
|
|
sbuf_delete(&sb);
|
|
|
|
error = sysctl_handle_string(oidp, temp, sizeof(temp), req);
|
|
|
|
/* Check for error or no change */
|
|
if (error == 0 && req->newptr != NULL) {
|
|
*dbg = 0;
|
|
kern_setenv((char *)oidp->oid_arg1, temp);
|
|
acpi_set_debugging(NULL);
|
|
}
|
|
ACPI_SERIAL_END(acpi);
|
|
|
|
return (error);
|
|
}
|
|
|
|
SYSCTL_PROC(_debug_acpi, OID_AUTO, layer, CTLFLAG_RW | CTLTYPE_STRING,
|
|
"debug.acpi.layer", 0, acpi_debug_sysctl, "A", "");
|
|
SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW | CTLTYPE_STRING,
|
|
"debug.acpi.level", 0, acpi_debug_sysctl, "A", "");
|
|
#endif /* ACPI_DEBUG */
|
|
|
|
static int
|
|
acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error;
|
|
int old;
|
|
|
|
old = acpi_debug_objects;
|
|
error = sysctl_handle_int(oidp, &acpi_debug_objects, 0, req);
|
|
if (error != 0 || req->newptr == NULL)
|
|
return (error);
|
|
if (old == acpi_debug_objects || (old && acpi_debug_objects))
|
|
return (0);
|
|
|
|
ACPI_SERIAL_BEGIN(acpi);
|
|
AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE;
|
|
ACPI_SERIAL_END(acpi);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
acpi_parse_interfaces(char *str, struct acpi_interface *iface)
|
|
{
|
|
char *p;
|
|
size_t len;
|
|
int i, j;
|
|
|
|
p = str;
|
|
while (isspace(*p) || *p == ',')
|
|
p++;
|
|
len = strlen(p);
|
|
if (len == 0)
|
|
return (0);
|
|
p = strdup(p, M_TEMP);
|
|
for (i = 0; i < len; i++)
|
|
if (p[i] == ',')
|
|
p[i] = '\0';
|
|
i = j = 0;
|
|
while (i < len)
|
|
if (isspace(p[i]) || p[i] == '\0')
|
|
i++;
|
|
else {
|
|
i += strlen(p + i) + 1;
|
|
j++;
|
|
}
|
|
if (j == 0) {
|
|
free(p, M_TEMP);
|
|
return (0);
|
|
}
|
|
iface->data = malloc(sizeof(*iface->data) * j, M_TEMP, M_WAITOK);
|
|
iface->num = j;
|
|
i = j = 0;
|
|
while (i < len)
|
|
if (isspace(p[i]) || p[i] == '\0')
|
|
i++;
|
|
else {
|
|
iface->data[j] = p + i;
|
|
i += strlen(p + i) + 1;
|
|
j++;
|
|
}
|
|
|
|
return (j);
|
|
}
|
|
|
|
static void
|
|
acpi_free_interfaces(struct acpi_interface *iface)
|
|
{
|
|
|
|
free(iface->data[0], M_TEMP);
|
|
free(iface->data, M_TEMP);
|
|
}
|
|
|
|
static void
|
|
acpi_reset_interfaces(device_t dev)
|
|
{
|
|
struct acpi_interface list;
|
|
ACPI_STATUS status;
|
|
int i;
|
|
|
|
if (acpi_parse_interfaces(acpi_install_interface, &list) > 0) {
|
|
for (i = 0; i < list.num; i++) {
|
|
status = AcpiInstallInterface(list.data[i]);
|
|
if (ACPI_FAILURE(status))
|
|
device_printf(dev,
|
|
"failed to install _OSI(\"%s\"): %s\n",
|
|
list.data[i], AcpiFormatException(status));
|
|
else if (bootverbose)
|
|
device_printf(dev, "installed _OSI(\"%s\")\n",
|
|
list.data[i]);
|
|
}
|
|
acpi_free_interfaces(&list);
|
|
}
|
|
if (acpi_parse_interfaces(acpi_remove_interface, &list) > 0) {
|
|
for (i = 0; i < list.num; i++) {
|
|
status = AcpiRemoveInterface(list.data[i]);
|
|
if (ACPI_FAILURE(status))
|
|
device_printf(dev,
|
|
"failed to remove _OSI(\"%s\"): %s\n",
|
|
list.data[i], AcpiFormatException(status));
|
|
else if (bootverbose)
|
|
device_printf(dev, "removed _OSI(\"%s\")\n",
|
|
list.data[i]);
|
|
}
|
|
acpi_free_interfaces(&list);
|
|
}
|
|
}
|
|
|
|
static int
|
|
acpi_pm_func(u_long cmd, void *arg, ...)
|
|
{
|
|
int state, acpi_state;
|
|
int error;
|
|
struct acpi_softc *sc;
|
|
va_list ap;
|
|
|
|
error = 0;
|
|
switch (cmd) {
|
|
case POWER_CMD_SUSPEND:
|
|
sc = (struct acpi_softc *)arg;
|
|
if (sc == NULL) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
va_start(ap, arg);
|
|
state = va_arg(ap, int);
|
|
va_end(ap);
|
|
|
|
switch (state) {
|
|
case POWER_SLEEP_STATE_STANDBY:
|
|
acpi_state = sc->acpi_standby_sx;
|
|
break;
|
|
case POWER_SLEEP_STATE_SUSPEND:
|
|
acpi_state = sc->acpi_suspend_sx;
|
|
break;
|
|
case POWER_SLEEP_STATE_HIBERNATE:
|
|
acpi_state = ACPI_STATE_S4;
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (ACPI_FAILURE(acpi_EnterSleepState(sc, acpi_state)))
|
|
error = ENXIO;
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
acpi_pm_register(void *arg)
|
|
{
|
|
if (!cold || resource_disabled("acpi", 0))
|
|
return;
|
|
|
|
power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, NULL);
|
|
}
|
|
|
|
SYSINIT(power, SI_SUB_KLD, SI_ORDER_ANY, acpi_pm_register, 0);
|