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NetBSD/sys/dev/acpi/acpi.c
drochner 46289e1fef Phase out the use of a string as first "attach args" member to control 
which bustype should be attached with a specific call to config_found()
(from a "mainbus" or a bus bridge).
Do it for isa/eisa/mca and pci/agp for now. These buses all attach to
an mi interface attribute "isabus", "eisabus" etc., and the autoconf
framework now allows to specify an interface attribute on config_found()
and config_search(), which limits the search of matching config data
to these which attach to that specific attribute.
So we basically have to call config_found_ia(..., "foobus", ...) where
such a bus is attached.
As a consequence, where a "mainbus" or alike also attaches other
devices (eg CPUs) which do not attach to a specific attribute yet,
we need at least pass an attribute name (different from "foobus") so
that the foo bus is not found at these places. This made some minor
changes necessary which are not obviously related to the mentioned buses.
2004-08-30 15:05:15 +00:00

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/* $NetBSD: acpi.c,v 1.67 2004/08/30 15:05:19 drochner Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum of By Noon Software, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright 2001, 2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Autoconfiguration support for the Intel ACPI Component Architecture
* ACPI reference implementation.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.67 2004/08/30 15:05:19 drochner Exp $");
#include "opt_acpi.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <dev/acpi/acpica.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpi_osd.h>
#ifdef ACPIVERBOSE
#include <dev/acpi/acpidevs_data.h>
#endif
#ifdef ACPI_PCI_FIXUP
#include <dev/pci/pcidevs.h>
#endif
MALLOC_DECLARE(M_ACPI);
#include <machine/acpi_machdep.h>
#ifdef ACPI_DEBUGGER
#define ACPI_DBGR_INIT 0x01
#define ACPI_DBGR_TABLES 0x02
#define ACPI_DBGR_ENABLE 0x04
#define ACPI_DBGR_PROBE 0x08
#define ACPI_DBGR_RUNNING 0x10
int acpi_dbgr = 0x00;
#endif
static int acpi_match(struct device *, struct cfdata *, void *);
static void acpi_attach(struct device *, struct device *, void *);
static int acpi_print(void *aux, const char *);
extern struct cfdriver acpi_cd;
CFATTACH_DECL(acpi, sizeof(struct acpi_softc),
acpi_match, acpi_attach, NULL, NULL);
/*
* This is a flag we set when the ACPI subsystem is active. Machine
* dependent code may wish to skip other steps (such as attaching
* subsystems that ACPI supercedes) when ACPI is active.
*/
int acpi_active;
/*
* Pointer to the ACPI subsystem's state. There can be only
* one ACPI instance.
*/
struct acpi_softc *acpi_softc;
/*
* Locking stuff.
*/
static struct simplelock acpi_slock;
static int acpi_locked;
/*
* Prototypes.
*/
static void acpi_shutdown(void *);
static ACPI_STATUS acpi_disable(struct acpi_softc *sc);
static void acpi_build_tree(struct acpi_softc *);
static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **);
static void acpi_enable_fixed_events(struct acpi_softc *);
#ifdef ACPI_PCI_FIXUP
void acpi_pci_fixup(struct acpi_softc *);
#endif
#if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV)
static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE handle);
#endif
/*
* acpi_probe:
*
* Probe for ACPI support. This is called by the
* machine-dependent ACPI front-end. All of the
* actual work is done by ACPICA.
*
* NOTE: This is not an autoconfiguration interface function.
*/
int
acpi_probe(void)
{
static int beenhere;
ACPI_STATUS rv;
if (beenhere != 0)
panic("acpi_probe: ACPI has already been probed");
beenhere = 1;
simple_lock_init(&acpi_slock);
acpi_locked = 0;
/*
* Start up ACPICA.
*/
#ifdef ACPI_DEBUGGER
if (acpi_dbgr & ACPI_DBGR_INIT)
acpi_osd_debugger();
#endif
rv = AcpiInitializeSubsystem();
if (ACPI_FAILURE(rv)) {
printf("ACPI: unable to initialize ACPICA: %s\n",
AcpiFormatException(rv));
return 0;
}
#ifdef ACPI_DEBUGGER
if (acpi_dbgr & ACPI_DBGR_TABLES)
acpi_osd_debugger();
#endif
rv = AcpiLoadTables();
if (ACPI_FAILURE(rv)) {
printf("ACPI: unable to load tables: %s\n",
AcpiFormatException(rv));
return 0;
}
/*
* Looks like we have ACPI!
*/
return 1;
}
/*
* acpi_match:
*
* Autoconfiguration `match' routine.
*/
static int
acpi_match(struct device *parent, struct cfdata *match, void *aux)
{
/*
* XXX Check other locators? Hard to know -- machine
* dependent code has already checked for the presence
* of ACPI by calling acpi_probe(), so I suppose we
* don't really have to do anything else.
*/
return 1;
}
/*
* acpi_attach:
*
* Autoconfiguration `attach' routine. Finish initializing
* ACPICA (some initialization was done in acpi_probe(),
* which was required to check for the presence of ACPI),
* and enable the ACPI subsystem.
*/
static void
acpi_attach(struct device *parent, struct device *self, void *aux)
{
struct acpi_softc *sc = (void *) self;
struct acpibus_attach_args *aa = aux;
ACPI_STATUS rv;
printf("\n");
if (acpi_softc != NULL)
panic("acpi_attach: ACPI has already been attached");
sysmon_power_settype("acpi");
printf("%s: using Intel ACPI CA subsystem version %08x\n",
sc->sc_dev.dv_xname, ACPI_CA_VERSION);
printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n",
sc->sc_dev.dv_xname,
AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId,
AcpiGbl_XSDT->OemRevision,
AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision);
sc->sc_quirks = acpi_find_quirks();
sc->sc_iot = aa->aa_iot;
sc->sc_memt = aa->aa_memt;
sc->sc_pc = aa->aa_pc;
sc->sc_pciflags = aa->aa_pciflags;
sc->sc_ic = aa->aa_ic;
acpi_softc = sc;
/*
* Bring ACPI on-line.
*/
#ifdef ACPI_DEBUGGER
if (acpi_dbgr & ACPI_DBGR_ENABLE)
acpi_osd_debugger();
#endif
rv = AcpiEnableSubsystem(0);
if (ACPI_FAILURE(rv)) {
printf("%s: unable to enable ACPI: %s\n",
sc->sc_dev.dv_xname, AcpiFormatException(rv));
return;
}
/* early EC handler initialization if ECDT table is available */
#if NACPIEC > 0
acpiec_early_attach(&sc->sc_dev);
#endif
rv = AcpiInitializeObjects(0);
if (ACPI_FAILURE(rv)) {
printf("%s: unable to initialize ACPI objects: %s\n",
sc->sc_dev.dv_xname, AcpiFormatException(rv));
return;
}
acpi_active = 1;
/* Our current state is "awake". */
sc->sc_sleepstate = ACPI_STATE_S0;
/* Show SCI interrupt. */
if (AcpiGbl_FADT != NULL)
printf("%s: SCI interrupting at int %d\n",
sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt);
/*
* Check for fixed-hardware features.
*/
acpi_enable_fixed_events(sc);
/*
* Fix up PCI devices.
*/
#ifdef ACPI_PCI_FIXUP
if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0)
acpi_pci_fixup(sc);
#endif
/*
* Scan the namespace and build our device tree.
*/
#ifdef ACPI_DEBUGGER
if (acpi_dbgr & ACPI_DBGR_PROBE)
acpi_osd_debugger();
#endif
acpi_md_callback((struct device *)sc);
acpi_build_tree(sc);
/*
* Register a shutdown hook that disables certain ACPI
* events that might happen and confuse us while we're
* trying to shut down.
*/
sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc);
if (sc->sc_sdhook == NULL)
printf("%s: WARNING: unable to register shutdown hook\n",
sc->sc_dev.dv_xname);
#ifdef ACPI_DEBUGGER
if (acpi_dbgr & ACPI_DBGR_RUNNING)
acpi_osd_debugger();
#endif
}
/*
* acpi_shutdown:
*
* Shutdown hook for ACPI -- disable some events that
* might confuse us.
*/
static void
acpi_shutdown(void *arg)
{
struct acpi_softc *sc = arg;
ACPI_STATUS rv;
rv = acpi_disable(sc);
if (ACPI_FAILURE(rv))
printf("%s: WARNING: unable to disable ACPI: %s\n",
sc->sc_dev.dv_xname, AcpiFormatException(rv));
}
/*
* acpi_disable:
*
* Disable ACPI.
*/
static ACPI_STATUS
acpi_disable(struct acpi_softc *sc)
{
ACPI_STATUS rv = AE_OK;
#ifdef ACPI_DISABLE_ON_POWEROFF
if (acpi_active) {
rv = AcpiDisable();
if (ACPI_SUCCESS(rv))
acpi_active = 0;
}
#endif
return rv;
}
struct acpi_make_devnode_state {
struct acpi_softc *softc;
struct acpi_scope *scope;
};
/*
* acpi_build_tree:
*
* Scan relevant portions of the ACPI namespace and attach
* child devices.
*/
static void
acpi_build_tree(struct acpi_softc *sc)
{
static const char *scopes[] = {
"\\_PR_", /* ACPI 1.0 processor namespace */
"\\_SB_", /* system bus namespace */
"\\_SI_", /* system idicator namespace */
"\\_TZ_", /* ACPI 1.0 thermal zone namespace */
NULL,
};
struct acpi_attach_args aa;
struct acpi_make_devnode_state state;
struct acpi_scope *as;
struct acpi_devnode *ad;
ACPI_HANDLE parent;
ACPI_STATUS rv;
int i;
TAILQ_INIT(&sc->sc_scopes);
state.softc = sc;
/*
* Scan the namespace and build our tree.
*/
for (i = 0; scopes[i] != NULL; i++) {
as = malloc(sizeof(*as), M_ACPI, M_WAITOK);
as->as_name = scopes[i];
TAILQ_INIT(&as->as_devnodes);
TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list);
state.scope = as;
rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i],
&parent);
if (ACPI_SUCCESS(rv)) {
AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100,
acpi_make_devnode, &state, NULL);
}
/* Now, for this namespace, try and attach the devices. */
TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) {
aa.aa_node = ad;
aa.aa_iot = sc->sc_iot;
aa.aa_memt = sc->sc_memt;
aa.aa_pc = sc->sc_pc;
aa.aa_pciflags = sc->sc_pciflags;
aa.aa_ic = sc->sc_ic;
if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) {
/*
* XXX We only attach devices which are:
*
* - present
* - enabled
* - functioning properly
*
* However, if enabled, it's decoding resources,
* so we should claim them, if possible.
* Requires changes to bus_space(9).
*/
if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) ==
ACPI_VALID_STA &&
(ad->ad_devinfo->CurrentStatus &
(ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|
ACPI_STA_DEV_OK)) !=
(ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|
ACPI_STA_DEV_OK))
continue;
/*
* XXX Same problem as above...
*/
if ((ad->ad_devinfo->Valid & ACPI_VALID_HID)
== 0)
continue;
}
ad->ad_device = config_found(&sc->sc_dev,
&aa, acpi_print);
}
}
}
#ifdef ACPI_ACTIVATE_DEV
static void
acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di)
{
ACPI_STATUS rv;
ACPI_BUFFER buf;
buf.Pointer = NULL;
buf.Length = ACPI_ALLOCATE_BUFFER;
#ifdef ACPI_DEBUG
printf("acpi_activate_device: %s, old status=%x\n",
(*di)->HardwareId.Value, (*di)->CurrentStatus);
#endif
rv = acpi_allocate_resources(handle);
if (ACPI_FAILURE(rv)) {
printf("acpi: activate failed for %s\n",
(*di)->HardwareId.Value);
} else {
printf("acpi: activated %s\n", (*di)->HardwareId.Value);
}
(void)AcpiGetObjectInfo(handle, &buf);
AcpiOsFree(*di);
*di = buf.Pointer;
#ifdef ACPI_DEBUG
printf("acpi_activate_device: %s, new status=%x\n",
(*di)->HardwareId.Value, (*di)->CurrentStatus);
#endif
}
#endif /* ACPI_ACTIVATE_DEV */
/*
* acpi_make_devnode:
*
* Make an ACPI devnode.
*/
static ACPI_STATUS
acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context,
void **status)
{
struct acpi_make_devnode_state *state = context;
#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG)
struct acpi_softc *sc = state->softc;
#endif
struct acpi_scope *as = state->scope;
struct acpi_devnode *ad;
ACPI_OBJECT_TYPE type;
ACPI_BUFFER buf;
ACPI_DEVICE_INFO *devinfo;
ACPI_STATUS rv;
rv = AcpiGetType(handle, &type);
if (ACPI_SUCCESS(rv)) {
buf.Pointer = NULL;
buf.Length = ACPI_ALLOCATE_BUFFER;
rv = AcpiGetObjectInfo(handle, &buf);
if (ACPI_FAILURE(rv)) {
#ifdef ACPI_DEBUG
printf("%s: AcpiGetObjectInfo failed: %s\n",
sc->sc_dev.dv_xname, AcpiFormatException(rv));
#endif
goto out; /* XXX why return OK */
}
devinfo = buf.Pointer;
switch (type) {
case ACPI_TYPE_DEVICE:
#ifdef ACPI_ACTIVATE_DEV
if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) ==
(ACPI_VALID_STA|ACPI_VALID_HID) &&
(devinfo->CurrentStatus &
(ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) ==
ACPI_STA_DEV_PRESENT)
acpi_activate_device(handle, &devinfo);
/* FALLTHROUGH */
#endif
case ACPI_TYPE_PROCESSOR:
case ACPI_TYPE_THERMAL:
case ACPI_TYPE_POWER:
ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO);
if (ad == NULL)
return AE_NO_MEMORY;
ad->ad_devinfo = devinfo;
ad->ad_handle = handle;
ad->ad_level = level;
ad->ad_scope = as;
ad->ad_type = type;
TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list);
if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0)
goto out;
#ifdef ACPI_EXTRA_DEBUG
printf("%s: HID %s found in scope %s level %d\n",
sc->sc_dev.dv_xname,
ad->ad_devinfo->HardwareId.Value,
as->as_name, ad->ad_level);
if (ad->ad_devinfo->Valid & ACPI_VALID_UID)
printf(" UID %s\n",
ad->ad_devinfo->UniqueId.Value);
if (ad->ad_devinfo->Valid & ACPI_VALID_ADR)
printf(" ADR 0x%016qx\n",
ad->ad_devinfo->Address);
if (ad->ad_devinfo->Valid & ACPI_VALID_STA)
printf(" STA 0x%08x\n",
ad->ad_devinfo->CurrentStatus);
#endif
}
}
out:
return AE_OK;
}
/*
* acpi_print:
*
* Autoconfiguration print routine.
*/
static int
acpi_print(void *aux, const char *pnp)
{
struct acpi_attach_args *aa = aux;
ACPI_STATUS rv;
if (pnp) {
if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) {
char *pnpstr =
aa->aa_node->ad_devinfo->HardwareId.Value;
char *str;
aprint_normal("%s ", pnpstr);
rv = acpi_eval_string(aa->aa_node->ad_handle,
"_STR", &str);
if (ACPI_SUCCESS(rv)) {
aprint_normal("[%s] ", str);
AcpiOsFree(str);
}
#ifdef ACPIVERBOSE
else {
int i;
for (i = 0; i < sizeof(acpi_knowndevs) /
sizeof(acpi_knowndevs[0]); i++) {
if (strcmp(acpi_knowndevs[i].pnp,
pnpstr) == 0) {
printf("[%s] ",
acpi_knowndevs[i].str);
}
}
}
#endif
} else {
aprint_normal("ACPI Object Type '%s' (0x%02x) ",
AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type),
aa->aa_node->ad_devinfo->Type);
}
aprint_normal("at %s", pnp);
} else {
if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) {
aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value);
if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) {
char *uid;
uid = aa->aa_node->ad_devinfo->UniqueId.Value;
if (uid[0] == '\0')
uid = "<null>";
aprint_normal("-%s", uid);
}
aprint_normal(")");
}
}
return UNCONF;
}
/*****************************************************************************
* ACPI fixed-hardware feature handlers
*****************************************************************************/
static UINT32 acpi_fixed_button_handler(void *);
static void acpi_fixed_button_pressed(void *);
/*
* acpi_enable_fixed_events:
*
* Enable any fixed-hardware feature handlers.
*/
static void
acpi_enable_fixed_events(struct acpi_softc *sc)
{
static int beenhere;
ACPI_STATUS rv;
KASSERT(beenhere == 0);
beenhere = 1;
/*
* Check for fixed-hardware buttons.
*/
if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) {
printf("%s: fixed-feature power button present\n",
sc->sc_dev.dv_xname);
sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname;
sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER;
if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) {
printf("%s: unable to register fixed power button "
"with sysmon\n", sc->sc_dev.dv_xname);
} else {
rv = AcpiInstallFixedEventHandler(
ACPI_EVENT_POWER_BUTTON,
acpi_fixed_button_handler, &sc->sc_smpsw_power);
if (ACPI_FAILURE(rv)) {
printf("%s: unable to install handler for "
"fixed power button: %s\n",
sc->sc_dev.dv_xname,
AcpiFormatException(rv));
}
}
}
if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) {
printf("%s: fixed-feature sleep button present\n",
sc->sc_dev.dv_xname);
sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname;
sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP;
if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) {
printf("%s: unable to register fixed sleep button "
"with sysmon\n", sc->sc_dev.dv_xname);
} else {
rv = AcpiInstallFixedEventHandler(
ACPI_EVENT_SLEEP_BUTTON,
acpi_fixed_button_handler, &sc->sc_smpsw_sleep);
if (ACPI_FAILURE(rv)) {
printf("%s: unable to install handler for "
"fixed sleep button: %s\n",
sc->sc_dev.dv_xname,
AcpiFormatException(rv));
}
}
}
}
/*
* acpi_fixed_button_handler:
*
* Event handler for the fixed buttons.
*/
static UINT32
acpi_fixed_button_handler(void *context)
{
struct sysmon_pswitch *smpsw = context;
int rv;
#ifdef ACPI_BUT_DEBUG
printf("%s: fixed button handler\n", smpsw->smpsw_name);
#endif
rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO,
acpi_fixed_button_pressed, smpsw);
if (ACPI_FAILURE(rv))
printf("%s: WARNING: unable to queue fixed button pressed "
"callback: %s\n", smpsw->smpsw_name,
AcpiFormatException(rv));
return ACPI_INTERRUPT_HANDLED;
}
/*
* acpi_fixed_button_pressed:
*
* Deal with a fixed button being pressed.
*/
static void
acpi_fixed_button_pressed(void *context)
{
struct sysmon_pswitch *smpsw = context;
#ifdef ACPI_BUT_DEBUG
printf("%s: fixed button pressed, calling sysmon\n",
smpsw->smpsw_name);
#endif
sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED);
}
/*****************************************************************************
* ACPI utility routines.
*****************************************************************************/
/*
* acpi_eval_integer:
*
* Evaluate an integer object.
*/
ACPI_STATUS
acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp)
{
ACPI_STATUS rv;
ACPI_BUFFER buf;
ACPI_OBJECT param;
if (handle == NULL)
handle = ACPI_ROOT_OBJECT;
buf.Pointer = &param;
buf.Length = sizeof(param);
rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER);
if (ACPI_SUCCESS(rv))
*valp = param.Integer.Value;
return rv;
}
/*
* acpi_eval_string:
*
* Evaluate a (Unicode) string object.
*/
ACPI_STATUS
acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp)
{
ACPI_STATUS rv;
ACPI_BUFFER buf;
if (handle == NULL)
handle = ACPI_ROOT_OBJECT;
buf.Pointer = NULL;
buf.Length = ACPI_ALLOCATE_BUFFER;
rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING);
if (ACPI_SUCCESS(rv)) {
ACPI_OBJECT *param = buf.Pointer;
char *ptr = param->String.Pointer;
size_t len = param->String.Length;
if ((*stringp = AcpiOsAllocate(len)) == NULL)
rv = AE_NO_MEMORY;
else
(void)memcpy(*stringp, ptr, len);
AcpiOsFree(param);
}
return rv;
}
/*
* acpi_eval_struct:
*
* Evaluate a more complex structure.
* Caller must free buf.Pointer by AcpiOsFree().
*/
ACPI_STATUS
acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp)
{
ACPI_STATUS rv;
if (handle == NULL)
handle = ACPI_ROOT_OBJECT;
bufp->Pointer = NULL;
bufp->Length = ACPI_ALLOCATE_BUFFER;
rv = AcpiEvaluateObject(handle, path, NULL, bufp);
return rv;
}
/*
* acpi_foreach_package_object:
*
* Iterate over all objects in a in a packages and pass then all
* to a function. If the called function returns non AE_OK, the
* iteration is stopped and that value is returned.
*/
ACPI_STATUS
acpi_foreach_package_object(ACPI_OBJECT *pkg,
ACPI_STATUS (*func)(ACPI_OBJECT *, void *),
void *arg)
{
ACPI_STATUS rv = AE_OK;
int i;
if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE)
return AE_BAD_PARAMETER;
for (i = 0; i < pkg->Package.Count; i++) {
rv = (*func)(&pkg->Package.Elements[i], arg);
if (ACPI_FAILURE(rv))
break;
}
return rv;
}
const char *
acpi_name(ACPI_HANDLE handle)
{
static char buffer[80];
ACPI_BUFFER buf;
ACPI_STATUS rv;
buf.Length = sizeof(buffer);
buf.Pointer = buffer;
rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf);
if (ACPI_FAILURE(rv))
return "(unknown acpi path)";
return buffer;
}
/*
* acpi_get:
*
* Fetch data info the specified (empty) ACPI buffer.
* Caller must free buf.Pointer by AcpiOsFree().
*/
ACPI_STATUS
acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf,
ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *))
{
buf->Pointer = NULL;
buf->Length = ACPI_ALLOCATE_BUFFER;
return (*getit)(handle, buf);
}
/*
* acpi_match_hid
*
* Match given ids against _HID and _CIDs
*/
int
acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids)
{
int i;
while (*ids) {
if (ad->Valid & ACPI_VALID_HID) {
if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2)
return 1;
}
if (ad->Valid & ACPI_VALID_CID) {
for (i = 0; i < ad->CompatibilityId.Count; i++) {
if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2)
return 1;
}
}
ids++;
}
return 0;
}
/*****************************************************************************
* ACPI sleep support.
*****************************************************************************/
static int
is_available_state(struct acpi_softc *sc, int state)
{
UINT8 type_a, type_b;
return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state,
&type_a, &type_b));
}
/*
* acpi_enter_sleep_state:
*
* enter to the specified sleep state.
*/
ACPI_STATUS
acpi_enter_sleep_state(struct acpi_softc *sc, int state)
{
int s;
ACPI_STATUS ret = AE_OK;
switch (state) {
case ACPI_STATE_S0:
break;
case ACPI_STATE_S1:
case ACPI_STATE_S2:
case ACPI_STATE_S3:
case ACPI_STATE_S4:
if (!is_available_state(sc, state)) {
printf("acpi: cannot enter the sleep state (%d).\n",
state);
break;
}
ret = AcpiEnterSleepStatePrep(state);
if (ACPI_FAILURE(ret)) {
printf("acpi: failed preparing to sleep (%s)\n",
AcpiFormatException(ret));
break;
}
if (state==ACPI_STATE_S1) {
/* just enter the state */
acpi_md_OsDisableInterrupt();
AcpiEnterSleepState((UINT8)state);
AcpiUtReleaseMutex(ACPI_MTX_HARDWARE);
} else {
/* XXX: powerhooks(9) framework is too poor to
* support ACPI sleep state...
*/
dopowerhooks(PWR_SOFTSUSPEND);
s = splhigh();
dopowerhooks(PWR_SUSPEND);
acpi_md_sleep(state);
dopowerhooks(PWR_RESUME);
splx(s);
dopowerhooks(PWR_SOFTRESUME);
if (state==ACPI_STATE_S4)
AcpiEnable();
}
AcpiLeaveSleepState((UINT8)state);
break;
case ACPI_STATE_S5:
ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5);
if (ACPI_FAILURE(ret)) {
printf("acpi: failed preparing to sleep (%s)\n",
AcpiFormatException(ret));
break;
}
acpi_md_OsDisableInterrupt();
AcpiEnterSleepState(ACPI_STATE_S5);
printf("WARNING: powerdown failed!\n");
break;
}
return ret;
}
#ifdef ACPI_PCI_FIXUP
ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **);
/*
* acpi_pci_fixup:
*
* Set up PCI devices that BIOS didn't handle right.
* Iterate through all devices and try to get the _PTR
* (PCI Routing Table). If it exists then make sure all
* interrupt links that it uses are working.
*/
void
acpi_pci_fixup(struct acpi_softc *sc)
{
ACPI_HANDLE parent;
ACPI_STATUS rv;
#ifdef ACPI_DEBUG
printf("acpi_pci_fixup starts:\n");
#endif
rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent);
if (ACPI_FAILURE(rv))
return;
sc->sc_pci_bus = 0;
AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100,
acpi_pci_fixup_bus, sc, NULL);
}
static uint
acpi_get_intr(ACPI_HANDLE handle)
{
ACPI_BUFFER ret;
ACPI_STATUS rv;
ACPI_RESOURCE *res;
ACPI_RESOURCE_IRQ *irq;
uint intr;
intr = -1;
rv = acpi_get(handle, &ret, AcpiGetCurrentResources);
if (ACPI_FAILURE(rv))
return intr;
for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG;
res = ACPI_NEXT_RESOURCE(res)) {
if (res->Id == ACPI_RSTYPE_IRQ) {
irq = (ACPI_RESOURCE_IRQ *)&res->Data;
if (irq->NumberOfInterrupts == 1)
intr = irq->Interrupts[0];
break;
}
}
AcpiOsFree(ret.Pointer);
return intr;
}
static void
acpi_pci_set_line(int bus, int dev, int pin, int line)
{
ACPI_STATUS err;
ACPI_PCI_ID pid;
UINT32 intr, id, bhlc;
int func, nfunc;
pid.Bus = bus;
pid.Device = dev;
pid.Function = 0;
err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32);
if (err)
return;
if (PCI_HDRTYPE_MULTIFN(bhlc))
nfunc = 8;
else
nfunc = 1;
for (func = 0; func < nfunc; func++) {
pid.Function = func;
err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32);
if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID ||
PCI_VENDOR(id) == 0)
continue;
err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG,
&intr, 32);
if (err) {
printf("AcpiOsReadPciConfiguration failed %d\n", err);
return;
}
if (pin == PCI_INTERRUPT_PIN(intr) &&
line != PCI_INTERRUPT_LINE(intr)) {
#ifdef ACPI_DEBUG
printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n",
bus, dev, func,
pin + '@', PCI_INTERRUPT_LINE(intr),
line);
#endif
intr &= ~(PCI_INTERRUPT_LINE_MASK <<
PCI_INTERRUPT_LINE_SHIFT);
intr |= line << PCI_INTERRUPT_LINE_SHIFT;
err = AcpiOsWritePciConfiguration(&pid,
PCI_INTERRUPT_REG, intr, 32);
if (err) {
printf("AcpiOsWritePciConfiguration failed"
" %d\n", err);
return;
}
}
}
}
ACPI_STATUS
acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context,
void **status)
{
struct acpi_softc *sc = context;
ACPI_STATUS rv;
ACPI_BUFFER buf;
UINT8 *Buffer;
ACPI_PCI_ROUTING_TABLE *PrtElement;
ACPI_HANDLE link;
uint line;
ACPI_INTEGER val;
rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable);
if (ACPI_FAILURE(rv))
return AE_OK;
/*
* If at level 1, this is a PCI root bus. Try the _BBN method
* to get the right PCI bus numbering for the following
* busses (this is a depth-first walk). It may fail,
* for example if there's only one root bus, but that
* case should be ok, so we'll ignore that.
*/
if (level == 1) {
rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val);
if (!ACPI_FAILURE(rv)) {
#ifdef ACPI_DEBUG
printf("%s: fixup: _BBN success, bus # was %d now %d\n",
sc->sc_dev.dv_xname, sc->sc_pci_bus,
ACPI_LOWORD(val));
#endif
sc->sc_pci_bus = ACPI_LOWORD(val);
}
}
#ifdef ACPI_DEBUG
printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname,
sc->sc_pci_bus, level);
#endif
for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) {
PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer;
if (PrtElement->Length == 0)
break;
if (PrtElement->Source[0] == 0)
continue;
rv = AcpiGetHandle(NULL, PrtElement->Source, &link);
if (ACPI_FAILURE(rv))
continue;
line = acpi_get_intr(link);
if (line == -1) {
#ifdef ACPI_DEBUG
printf("%s: fixing up intr link %s\n",
sc->sc_dev.dv_xname, PrtElement->Source);
#endif
rv = acpi_allocate_resources(link);
if (ACPI_FAILURE(rv)) {
printf("%s: interrupt allocation failed %s\n",
sc->sc_dev.dv_xname, PrtElement->Source);
continue;
}
line = acpi_get_intr(link);
if (line == -1) {
printf("%s: get intr failed %s\n",
sc->sc_dev.dv_xname, PrtElement->Source);
continue;
}
}
acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16,
PrtElement->Pin + 1, line);
}
sc->sc_pci_bus++;
AcpiOsFree(buf.Pointer);
return AE_OK;
}
#endif /* ACPI_PCI_FIXUP */
#if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV)
/* XXX This very incomplete */
static ACPI_STATUS
acpi_allocate_resources(ACPI_HANDLE handle)
{
ACPI_BUFFER bufp, bufc, bufn;
ACPI_RESOURCE *resp, *resc, *resn;
ACPI_RESOURCE_IRQ *irq;
ACPI_STATUS rv;
uint delta;
rv = acpi_get(handle, &bufp, AcpiGetPossibleResources);
if (ACPI_FAILURE(rv))
goto out;
rv = acpi_get(handle, &bufc, AcpiGetCurrentResources);
if (ACPI_FAILURE(rv)) {
goto out1;
}
bufn.Length = 1000;
bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK);
resp = bufp.Pointer;
resc = bufc.Pointer;
while (resc->Id != ACPI_RSTYPE_END_TAG &&
resp->Id != ACPI_RSTYPE_END_TAG) {
while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG)
resp = ACPI_NEXT_RESOURCE(resp);
if (resp->Id == ACPI_RSTYPE_END_TAG)
break;
/* Found identical Id */
resn->Id = resc->Id;
switch (resc->Id) {
case ACPI_RSTYPE_IRQ:
memcpy(&resn->Data, &resp->Data,
sizeof(ACPI_RESOURCE_IRQ));
irq = (ACPI_RESOURCE_IRQ *)&resn->Data;
irq->Interrupts[0] =
((ACPI_RESOURCE_IRQ *)&resp->Data)->
Interrupts[irq->NumberOfInterrupts-1];
irq->NumberOfInterrupts = 1;
resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ);
break;
case ACPI_RSTYPE_IO:
memcpy(&resn->Data, &resp->Data,
sizeof(ACPI_RESOURCE_IO));
resn->Length = resp->Length;
break;
default:
printf("acpi_allocate_resources: res=%d\n", resc->Id);
rv = AE_BAD_DATA;
goto out2;
}
resc = ACPI_NEXT_RESOURCE(resc);
resn = ACPI_NEXT_RESOURCE(resn);
delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer;
if (delta >=
bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) {
bufn.Length *= 2;
bufn.Pointer = realloc(bufn.Pointer, bufn.Length,
M_ACPI, M_WAITOK);
resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta);
}
}
if (resc->Id != ACPI_RSTYPE_END_TAG) {
printf("acpi_allocate_resources: resc not exhausted\n");
rv = AE_BAD_DATA;
goto out3;
}
resn->Id = ACPI_RSTYPE_END_TAG;
rv = AcpiSetCurrentResources(handle, &bufn);
if (ACPI_FAILURE(rv)) {
printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n",
AcpiFormatException(rv));
}
out3:
free(bufn.Pointer, M_ACPI);
out2:
AcpiOsFree(bufc.Pointer);
out1:
AcpiOsFree(bufp.Pointer);
out:
return rv;
}
#endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */
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