static ACPI_STATUS
AeInstallPciHandler (
ACPI_HANDLE ObjHandle,
UINT32 Level,
void *Context,
void **ReturnValue)
{
ACPI_STATUS Status;
/* Install memory and I/O handlers for the PCI device */
Status = AcpiInstallAddressSpaceHandler (ObjHandle, ACPI_ADR_SPACE_SYSTEM_IO,
AeRegionHandler, AeRegionInit, &AeMyContext);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not install an OpRegion handler for PCI device (%p)",
ObjHandle));
}
Status = AcpiInstallAddressSpaceHandler (ObjHandle, ACPI_ADR_SPACE_SYSTEM_MEMORY,
AeRegionHandler, AeRegionInit, &AeMyContext);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not install an OpRegion handler for PCI device (%p)",
ObjHandle));
}
return (AE_CTRL_TERMINATE);
}
static ACPI_STATUS
InstallHandlers (void)
{
ACPI_STATUS Status;
/* Install global notify handler */
Status = AcpiInstallNotifyHandler (ACPI_ROOT_OBJECT,
ACPI_SYSTEM_NOTIFY, NotifyHandler, NULL);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "While installing Notify handler"));
return (Status);
}
Status = AcpiInstallAddressSpaceHandler (ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_SYSTEM_MEMORY, RegionHandler, RegionInit, NULL);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "While installing an OpRegion handler"));
return (Status);
}
return (AE_OK);
}
/*
* Install acpica-provided (default) address-space handlers
* that may be needed before AcpiEnableSubsystem() runs.
* See the comment in AcpiInstallAddressSpaceHandler().
* Default handlers for remaining address spaces are
* installed later, in AcpiEnableSubsystem.
*/
static int
acpica_install_handlers()
{
ACPI_STATUS rv = AE_OK;
ACPI_STATUS res;
/*
* Install ACPI CA default handlers
*/
if ((res = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_SYSTEM_MEMORY,
ACPI_DEFAULT_HANDLER, NULL, NULL)) != AE_OK &&
res != AE_SAME_HANDLER) {
cmn_err(CE_WARN, "!acpica: no default handler for"
" system memory");
rv = AE_ERROR;
}
if ((res = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_SYSTEM_IO,
ACPI_DEFAULT_HANDLER, NULL, NULL)) != AE_OK &&
res != AE_SAME_HANDLER) {
cmn_err(CE_WARN, "!acpica: no default handler for"
" system I/O");
rv = AE_ERROR;
}
if ((res = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_PCI_CONFIG,
ACPI_DEFAULT_HANDLER, NULL, NULL)) != AE_OK &&
res != AE_SAME_HANDLER) {
cmn_err(CE_WARN, "!acpica: no default handler for"
" PCI Config");
rv = AE_ERROR;
}
if ((res = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_DATA_TABLE,
ACPI_DEFAULT_HANDLER, NULL, NULL)) != AE_OK &&
res != AE_SAME_HANDLER) {
cmn_err(CE_WARN, "!acpica: no default handler for"
" Data Table");
rv = AE_ERROR;
}
return (rv);
}
ACPI_STATUS
AeInstallLateHandlers (
void)
{
ACPI_STATUS Status;
UINT32 i;
#if (!ACPI_REDUCED_HARDWARE)
if (!AcpiGbl_ReducedHardware)
{
/* Install a user SCI handler */
Status = AeInstallSciHandler ();
AE_CHECK_OK (AeInstallSciHandler, Status);
/* Install some fixed event handlers */
Status = AcpiInstallFixedEventHandler (ACPI_EVENT_GLOBAL, AeEventHandler, NULL);
AE_CHECK_OK (AcpiInstallFixedEventHandler, Status);
Status = AcpiInstallFixedEventHandler (ACPI_EVENT_RTC, AeEventHandler, NULL);
AE_CHECK_OK (AcpiInstallFixedEventHandler, Status);
}
#endif /* !ACPI_REDUCED_HARDWARE */
AeMyContext.Connection = NULL;
AeMyContext.AccessLength = 0xA5;
/*
* We will install a handler for each EC device, directly under the EC
* device definition. This is unlike the other handlers which we install
* at the root node. Also install memory and I/O handlers at any PCI
* devices.
*/
AeInstallDeviceHandlers ();
/*
* Install handlers for some of the "device driver" address spaces
* such as SMBus, etc.
*/
for (i = 0; i < ACPI_ARRAY_LENGTH (SpaceIdList); i++)
{
/* Install handler at the root object */
Status = AcpiInstallAddressSpaceHandler (ACPI_ROOT_OBJECT,
SpaceIdList[i], AeRegionHandler,
AeRegionInit, &AeMyContext);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not install an OpRegion handler for %s space(%u)",
AcpiUtGetRegionName((UINT8) SpaceIdList[i]), SpaceIdList[i]));
return (Status);
}
}
return (AE_OK);
}
status_t
install_address_space_handler(acpi_handle handle, uint32 spaceId,
acpi_adr_space_handler handler, acpi_adr_space_setup setup, void *data)
{
return AcpiInstallAddressSpaceHandler(handle, spaceId,
(ACPI_ADR_SPACE_HANDLER)handler, (ACPI_ADR_SPACE_SETUP)setup, data)
== AE_OK ? B_OK : B_ERROR;
}
static void
smbus_acpi_install_address_space_handler(struct smbus_acpi_softc *sc)
{
ACPI_HANDLE handle;
ACPI_STATUS s;
handle = acpi_get_handle(sc->parent);
sc->space_handler_data.dev = sc->parent;
s = AcpiInstallAddressSpaceHandler(handle, ACPI_ADR_SPACE_GSBUS,
&smbus_acpi_space_handler, NULL, &sc->space_handler_data);
if (ACPI_FAILURE(s)) {
device_printf(sc->dev,
"Failed to install GSBUS Address Space Handler in ACPI\n");
}
}
static ACPI_STATUS
AeInstallEcHandler (
ACPI_HANDLE ObjHandle,
UINT32 Level,
void *Context,
void **ReturnValue)
{
ACPI_STATUS Status;
/* Install the handler for this EC device */
Status = AcpiInstallAddressSpaceHandler (ObjHandle, ACPI_ADR_SPACE_EC,
AeRegionHandler, AeRegionInit, &AeMyContext);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not install an OpRegion handler for EC device (%p)",
ObjHandle));
}
return (Status);
}
static int
acpi_ec_attach(device_t dev)
{
struct acpi_ec_softc *sc;
struct acpi_ec_params *params;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
/* Fetch/initialize softc (assumes softc is pre-zeroed). */
sc = device_get_softc(dev);
params = acpi_get_private(dev);
sc->ec_dev = dev;
sc->ec_handle = acpi_get_handle(dev);
ACPI_SERIAL_INIT(ec);
/* Retrieve previously probed values via device ivars. */
sc->ec_glk = params->glk;
sc->ec_gpebit = params->gpe_bit;
sc->ec_gpehandle = params->gpe_handle;
sc->ec_uid = params->uid;
sc->ec_suspending = FALSE;
acpi_set_private(dev, NULL);
kfree(params, M_TEMP);
/* Attach bus resources for data and command/status ports. */
sc->ec_data_rid = 0;
sc->ec_data_res = bus_alloc_resource_any(sc->ec_dev, SYS_RES_IOPORT,
&sc->ec_data_rid, RF_ACTIVE);
if (sc->ec_data_res == NULL) {
device_printf(dev, "can't allocate data port\n");
goto error;
}
sc->ec_data_tag = rman_get_bustag(sc->ec_data_res);
sc->ec_data_handle = rman_get_bushandle(sc->ec_data_res);
sc->ec_csr_rid = 1;
sc->ec_csr_res = bus_alloc_resource_any(sc->ec_dev, SYS_RES_IOPORT,
&sc->ec_csr_rid, RF_ACTIVE);
if (sc->ec_csr_res == NULL) {
device_printf(dev, "can't allocate command/status port\n");
goto error;
}
sc->ec_csr_tag = rman_get_bustag(sc->ec_csr_res);
sc->ec_csr_handle = rman_get_bushandle(sc->ec_csr_res);
/*
* Install a handler for this EC's GPE bit. We want edge-triggered
* behavior.
*/
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "attaching GPE handler\n"));
Status = AcpiInstallGpeHandler(sc->ec_gpehandle, sc->ec_gpebit,
ACPI_GPE_EDGE_TRIGGERED, &EcGpeHandler, sc);
if (ACPI_FAILURE(Status)) {
device_printf(dev, "can't install GPE handler for %s - %s\n",
acpi_name(sc->ec_handle), AcpiFormatException(Status));
goto error;
}
/*
* Install address space handler
*/
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "attaching address space handler\n"));
Status = AcpiInstallAddressSpaceHandler(sc->ec_handle, ACPI_ADR_SPACE_EC,
&EcSpaceHandler, &EcSpaceSetup, sc);
if (ACPI_FAILURE(Status)) {
device_printf(dev, "can't install address space handler for %s - %s\n",
acpi_name(sc->ec_handle), AcpiFormatException(Status));
goto error;
}
/* Enable runtime GPEs for the handler */
Status = AcpiEnableGpe(sc->ec_gpehandle, sc->ec_gpebit);
if (ACPI_FAILURE(Status)) {
device_printf(dev, "AcpiEnableGpe failed: %s\n",
AcpiFormatException(Status));
goto error;
}
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "acpi_ec_attach complete\n"));
return (0);
error:
AcpiRemoveGpeHandler(sc->ec_gpehandle, sc->ec_gpebit, &EcGpeHandler);
AcpiRemoveAddressSpaceHandler(sc->ec_handle, ACPI_ADR_SPACE_EC,
EcSpaceHandler);
if (sc->ec_csr_res)
bus_release_resource(sc->ec_dev, SYS_RES_IOPORT, sc->ec_csr_rid,
sc->ec_csr_res);
if (sc->ec_data_res)
bus_release_resource(sc->ec_dev, SYS_RES_IOPORT, sc->ec_data_rid,
sc->ec_data_res);
return (ENXIO);
}
ACPI_STATUS
AcpiEvPciConfigRegionSetup (
ACPI_HANDLE Handle,
UINT32 Function,
void *HandlerContext,
void **RegionContext)
{
ACPI_STATUS Status = AE_OK;
UINT64 PciValue;
ACPI_PCI_ID *PciId = *RegionContext;
ACPI_OPERAND_OBJECT *HandlerObj;
ACPI_NAMESPACE_NODE *ParentNode;
ACPI_NAMESPACE_NODE *PciRootNode;
ACPI_NAMESPACE_NODE *PciDeviceNode;
ACPI_OPERAND_OBJECT *RegionObj = (ACPI_OPERAND_OBJECT *) Handle;
ACPI_FUNCTION_TRACE (EvPciConfigRegionSetup);
HandlerObj = RegionObj->Region.Handler;
if (!HandlerObj)
{
/*
* No installed handler. This shouldn't happen because the dispatch
* routine checks before we get here, but we check again just in case.
*/
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
"Attempting to init a region %p, with no handler\n", RegionObj));
return_ACPI_STATUS (AE_NOT_EXIST);
}
*RegionContext = NULL;
if (Function == ACPI_REGION_DEACTIVATE)
{
if (PciId)
{
ACPI_FREE (PciId);
}
return_ACPI_STATUS (Status);
}
ParentNode = RegionObj->Region.Node->Parent;
/*
* Get the _SEG and _BBN values from the device upon which the handler
* is installed.
*
* We need to get the _SEG and _BBN objects relative to the PCI BUS device.
* This is the device the handler has been registered to handle.
*/
/*
* If the AddressSpace.Node is still pointing to the root, we need
* to scan upward for a PCI Root bridge and re-associate the OpRegion
* handlers with that device.
*/
if (HandlerObj->AddressSpace.Node == AcpiGbl_RootNode)
{
/* Start search from the parent object */
PciRootNode = ParentNode;
while (PciRootNode != AcpiGbl_RootNode)
{
/* Get the _HID/_CID in order to detect a RootBridge */
if (AcpiEvIsPciRootBridge (PciRootNode))
{
/* Install a handler for this PCI root bridge */
Status = AcpiInstallAddressSpaceHandler (
(ACPI_HANDLE) PciRootNode,
ACPI_ADR_SPACE_PCI_CONFIG,
ACPI_DEFAULT_HANDLER, NULL, NULL);
if (ACPI_FAILURE (Status))
{
if (Status == AE_SAME_HANDLER)
{
/*
* It is OK if the handler is already installed on the
* root bridge. Still need to return a context object
* for the new PCI_Config operation region, however.
*/
Status = AE_OK;
}
else
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not install PciConfig handler "
"for Root Bridge %4.4s",
AcpiUtGetNodeName (PciRootNode)));
}
}
break;
}
PciRootNode = PciRootNode->Parent;
}
/* PCI root bridge not found, use namespace root node */
}
else
{
PciRootNode = HandlerObj->AddressSpace.Node;
}
/*
* If this region is now initialized, we are done.
* (InstallAddressSpaceHandler could have initialized it)
*/
if (RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE)
{
return_ACPI_STATUS (AE_OK);
}
/* Region is still not initialized. Create a new context */
PciId = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PCI_ID));
if (!PciId)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* For PCI_Config space access, we need the segment, bus, device and
* function numbers. Acquire them here.
*
* Find the parent device object. (This allows the operation region to be
* within a subscope under the device, such as a control method.)
*/
PciDeviceNode = RegionObj->Region.Node;
while (PciDeviceNode && (PciDeviceNode->Type != ACPI_TYPE_DEVICE))
{
PciDeviceNode = PciDeviceNode->Parent;
}
if (!PciDeviceNode)
{
ACPI_FREE (PciId);
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
}
/*
* Get the PCI device and function numbers from the _ADR object
* contained in the parent's scope.
*/
Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR,
PciDeviceNode, &PciValue);
/*
* The default is zero, and since the allocation above zeroed the data,
* just do nothing on failure.
*/
if (ACPI_SUCCESS (Status))
{
PciId->Device = ACPI_HIWORD (ACPI_LODWORD (PciValue));
PciId->Function = ACPI_LOWORD (ACPI_LODWORD (PciValue));
}
/* The PCI segment number comes from the _SEG method */
Status = AcpiUtEvaluateNumericObject (METHOD_NAME__SEG,
PciRootNode, &PciValue);
if (ACPI_SUCCESS (Status))
{
PciId->Segment = ACPI_LOWORD (PciValue);
}
/* The PCI bus number comes from the _BBN method */
Status = AcpiUtEvaluateNumericObject (METHOD_NAME__BBN,
PciRootNode, &PciValue);
if (ACPI_SUCCESS (Status))
{
PciId->Bus = ACPI_LOWORD (PciValue);
}
/* Complete/update the PCI ID for this device */
Status = AcpiHwDerivePciId (PciId, PciRootNode, RegionObj->Region.Node);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (PciId);
return_ACPI_STATUS (Status);
}
*RegionContext = PciId;
return_ACPI_STATUS (AE_OK);
}
static status_t
acpi_std_ops(int32 op,...)
{
switch (op) {
case B_MODULE_INIT:
{
ACPI_OBJECT arg;
ACPI_OBJECT_LIST parameter;
void *settings;
bool acpiDisabled = false;
AcpiGbl_CopyDsdtLocally = true;
settings = load_driver_settings("kernel");
if (settings != NULL) {
acpiDisabled = !get_driver_boolean_parameter(settings, "acpi",
true, true);
unload_driver_settings(settings);
}
if (!acpiDisabled) {
// check if safemode settings disable ACPI
settings = load_driver_settings(B_SAFEMODE_DRIVER_SETTINGS);
if (settings != NULL) {
acpiDisabled = get_driver_boolean_parameter(settings,
B_SAFEMODE_DISABLE_ACPI, false, false);
unload_driver_settings(settings);
}
}
if (acpiDisabled) {
ERROR("ACPI disabled\n");
return ENOSYS;
}
if (gDPC->new_dpc_queue(&gDPCHandle, "acpi_task",
B_URGENT_DISPLAY_PRIORITY + 1) != B_OK) {
ERROR("failed to create os execution queue\n");
return B_ERROR;
}
#ifdef ACPI_DEBUG_OUTPUT
AcpiDbgLevel = ACPI_DEBUG_ALL | ACPI_LV_VERBOSE;
AcpiDbgLayer = ACPI_ALL_COMPONENTS;
#endif
if (checkAndLogFailure(AcpiInitializeSubsystem(),
"AcpiInitializeSubsystem failed"))
goto err;
if (checkAndLogFailure(AcpiInitializeTables(NULL, 0, TRUE),
"AcpiInitializeTables failed"))
goto err;
if (checkAndLogFailure(AcpiLoadTables(),
"AcpiLoadTables failed"))
goto err;
/* Install the default address space handlers. */
if (checkAndLogFailure(AcpiInstallAddressSpaceHandler(
ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_SYSTEM_MEMORY,
ACPI_DEFAULT_HANDLER, NULL, NULL),
"Could not initialise SystemMemory handler:"))
goto err;
if (checkAndLogFailure(AcpiInstallAddressSpaceHandler(
ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_SYSTEM_IO,
ACPI_DEFAULT_HANDLER, NULL, NULL),
"Could not initialise SystemIO handler:"))
goto err;
if (checkAndLogFailure(AcpiInstallAddressSpaceHandler(
ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_PCI_CONFIG,
ACPI_DEFAULT_HANDLER, NULL, NULL),
"Could not initialise PciConfig handler:"))
goto err;
arg.Integer.Type = ACPI_TYPE_INTEGER;
arg.Integer.Value = apic_available() ? APIC_MODE : PIC_MODE;
parameter.Count = 1;
parameter.Pointer = &arg;
AcpiEvaluateObject(NULL, "\\_PIC", ¶meter, NULL);
if (checkAndLogFailure(AcpiEnableSubsystem(
ACPI_FULL_INITIALIZATION),
"AcpiEnableSubsystem failed"))
goto err;
if (checkAndLogFailure(AcpiInitializeObjects(
ACPI_FULL_INITIALIZATION),
"AcpiInitializeObjects failed"))
goto err;
//TODO: Walk namespace init ALL _PRW's
#ifdef ACPI_DEBUG_OUTPUT
checkAndLogFailure(
AcpiInstallGlobalEventHandler(globalGPEHandler, NULL),
"Failed to install global GPE-handler.");
checkAndLogFailure(AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT,
ACPI_ALL_NOTIFY, globalNotifyHandler, NULL),
"Failed to install global Notify-handler.");
#endif
checkAndLogFailure(AcpiEnableAllRuntimeGpes(),
"Failed to enable all runtime Gpes");
checkAndLogFailure(AcpiUpdateAllGpes(),
"Failed to update all Gpes");
TRACE("ACPI initialized\n");
return B_OK;
err:
return B_ERROR;
}
case B_MODULE_UNINIT:
{
if (checkAndLogFailure(AcpiTerminate(),
"Could not bring system out of ACPI mode. Oh well."));
gDPC->delete_dpc_queue(gDPCHandle);
gDPCHandle = NULL;
break;
}
default:
return B_ERROR;
}
return B_OK;
}
ACPI_STATUS
AeInstallHandlers (void)
{
ACPI_STATUS Status;
UINT32 i;
ACPI_HANDLE Handle;
ACPI_FUNCTION_ENTRY ();
Status = AcpiInstallTableHandler (AeTableHandler, NULL);
if (ACPI_FAILURE (Status))
{
printf ("Could not install table handler, %s\n",
AcpiFormatException (Status));
}
Status = AcpiInstallExceptionHandler (AeExceptionHandler);
if (ACPI_FAILURE (Status))
{
printf ("Could not install exception handler, %s\n",
AcpiFormatException (Status));
}
/* Install global notify handler */
Status = AcpiInstallNotifyHandler (ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY,
AeNotifyHandler, NULL);
if (ACPI_FAILURE (Status))
{
printf ("Could not install a global notify handler, %s\n",
AcpiFormatException (Status));
}
Status = AcpiInstallNotifyHandler (ACPI_ROOT_OBJECT, ACPI_DEVICE_NOTIFY,
AeDeviceNotifyHandler, NULL);
if (ACPI_FAILURE (Status))
{
printf ("Could not install a global notify handler, %s\n",
AcpiFormatException (Status));
}
Status = AcpiGetHandle (NULL, "\\_SB", &Handle);
if (ACPI_SUCCESS (Status))
{
Status = AcpiInstallNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
AeNotifyHandler, NULL);
if (ACPI_FAILURE (Status))
{
printf ("Could not install a notify handler, %s\n",
AcpiFormatException (Status));
}
Status = AcpiRemoveNotifyHandler (Handle, ACPI_SYSTEM_NOTIFY,
AeNotifyHandler);
if (ACPI_FAILURE (Status))
{
printf ("Could not remove a notify handler, %s\n",
AcpiFormatException (Status));
}
Status = AcpiInstallNotifyHandler (Handle, ACPI_ALL_NOTIFY,
AeNotifyHandler, NULL);
Status = AcpiRemoveNotifyHandler (Handle, ACPI_ALL_NOTIFY,
AeNotifyHandler);
Status = AcpiInstallNotifyHandler (Handle, ACPI_ALL_NOTIFY,
AeNotifyHandler, NULL);
if (ACPI_FAILURE (Status))
{
printf ("Could not install a notify handler, %s\n",
AcpiFormatException (Status));
}
Status = AcpiAttachData (Handle, AeAttachedDataHandler, Handle);
Status = AcpiDetachData (Handle, AeAttachedDataHandler);
Status = AcpiAttachData (Handle, AeAttachedDataHandler, Handle);
}
else
{
printf ("No _SB_ found, %s\n", AcpiFormatException (Status));
}
/* Set a handler for all supported operation regions */
for (i = 0; i < AEXEC_NUM_REGIONS; i++)
{
Status = AcpiRemoveAddressSpaceHandler (AcpiGbl_RootNode,
SpaceId[i], AeRegionHandler);
/* Install handler at the root object.
* TBD: all default handlers should be installed here!
*/
Status = AcpiInstallAddressSpaceHandler (AcpiGbl_RootNode,
SpaceId[i], AeRegionHandler, AeRegionInit, NULL);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not install an OpRegion handler for %s space(%u)",
AcpiUtGetRegionName((UINT8) SpaceId[i]), SpaceId[i]));
return (Status);
}
}
/*
* Initialize the global Region Handler space
* MCW 3/23/00
*/
AeRegions.NumberOfRegions = 0;
AeRegions.RegionList = NULL;
return Status;
}
ACPI_STATUS
AcpiEvInitAddressSpaces (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("EvInitAddressSpaces");
/*
* All address spaces (PCI Config, EC, SMBus) are scope dependent
* and registration must occur for a specific device. In the case
* system memory and IO address spaces there is currently no device
* associated with the address space. For these we use the root.
* We install the default PCI config space handler at the root so
* that this space is immediately available even though the we have
* not enumerated all the PCI Root Buses yet. This is to conform
* to the ACPI specification which states that the PCI config
* space must be always available -- even though we are nowhere
* near ready to find the PCI root buses at this point.
*
* NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
* has already been installed (via AcpiInstallAddressSpaceHandler)
*/
Status = AcpiInstallAddressSpaceHandler ((ACPI_HANDLE) AcpiGbl_RootNode,
ACPI_ADR_SPACE_SYSTEM_MEMORY,
ACPI_DEFAULT_HANDLER, NULL, NULL);
if ((ACPI_FAILURE (Status)) &&
(Status != AE_ALREADY_EXISTS))
{
return_ACPI_STATUS (Status);
}
Status = AcpiInstallAddressSpaceHandler ((ACPI_HANDLE) AcpiGbl_RootNode,
ACPI_ADR_SPACE_SYSTEM_IO,
ACPI_DEFAULT_HANDLER, NULL, NULL);
if ((ACPI_FAILURE (Status)) &&
(Status != AE_ALREADY_EXISTS))
{
return_ACPI_STATUS (Status);
}
Status = AcpiInstallAddressSpaceHandler ((ACPI_HANDLE) AcpiGbl_RootNode,
ACPI_ADR_SPACE_PCI_CONFIG,
ACPI_DEFAULT_HANDLER, NULL, NULL);
if ((ACPI_FAILURE (Status)) &&
(Status != AE_ALREADY_EXISTS))
{
return_ACPI_STATUS (Status);
}
Status = AcpiInstallAddressSpaceHandler ((ACPI_HANDLE) AcpiGbl_RootNode,
ACPI_ADR_SPACE_DATA_TABLE,
ACPI_DEFAULT_HANDLER, NULL, NULL);
if ((ACPI_FAILURE (Status)) &&
(Status != AE_ALREADY_EXISTS))
{
return_ACPI_STATUS (Status);
}
return_ACPI_STATUS (AE_OK);
}
static int
acpi_ec_attach(device_t dev)
{
struct acpi_ec_softc *sc;
ACPI_STATUS Status;
int errval = 0;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
/*
* Fetch/initialise softc
*/
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->ec_dev = dev;
sc->ec_handle = acpi_get_handle(dev);
/*
* Attach bus resources
*/
sc->ec_data_rid = 0;
if ((sc->ec_data_res = bus_alloc_resource(sc->ec_dev, SYS_RES_IOPORT, &sc->ec_data_rid,
0, ~0, 1, RF_ACTIVE)) == NULL) {
device_printf(dev, "can't allocate data port\n");
errval = ENXIO;
goto out;
}
sc->ec_data_tag = rman_get_bustag(sc->ec_data_res);
sc->ec_data_handle = rman_get_bushandle(sc->ec_data_res);
sc->ec_csr_rid = 1;
if ((sc->ec_csr_res = bus_alloc_resource(sc->ec_dev, SYS_RES_IOPORT, &sc->ec_csr_rid,
0, ~0, 1, RF_ACTIVE)) == NULL) {
device_printf(dev, "can't allocate command/status port\n");
errval = ENXIO;
goto out;
}
sc->ec_csr_tag = rman_get_bustag(sc->ec_csr_res);
sc->ec_csr_handle = rman_get_bushandle(sc->ec_csr_res);
/*
* Install GPE handler
*
* Evaluate the _GPE method to find the GPE bit used by the EC to signal
* status (SCI).
*/
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "attaching GPE\n"));
if (ACPI_FAILURE(Status = acpi_EvaluateInteger(sc->ec_handle, "_GPE", &sc->ec_gpebit))) {
device_printf(dev, "can't evaluate _GPE - %s\n", AcpiFormatException(Status));
errval =ENXIO;
goto out;
}
/*
* Install a handler for this EC's GPE bit. Note that EC SCIs are
* treated as both edge- and level-triggered interrupts; in other words
* we clear the status bit immediately after getting an EC-SCI, then
* again after we're done processing the event. This guarantees that
* events we cause while performing a transaction (e.g. IBE/OBF) get
* cleared before re-enabling the GPE.
*/
if (ACPI_FAILURE(Status = AcpiInstallGpeHandler(sc->ec_gpebit,
ACPI_EVENT_LEVEL_TRIGGERED |
ACPI_EVENT_EDGE_TRIGGERED,
EcGpeHandler, sc))) {
device_printf(dev, "can't install GPE handler for %s - %s\n",
acpi_name(sc->ec_handle), AcpiFormatException(Status));
errval = ENXIO;
goto out;
}
/*
* Install address space handler
*/
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "attaching address space handler\n"));
if (ACPI_FAILURE(Status = AcpiInstallAddressSpaceHandler(sc->ec_handle,
ACPI_ADR_SPACE_EC,
EcSpaceHandler,
EcSpaceSetup,
sc))) {
device_printf(dev, "can't install address space handler for %s - %s\n",
acpi_name(sc->ec_handle), AcpiFormatException(Status));
panic("very suck");
errval = ENXIO;
goto out;
}
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "attach complete\n"));
return_VALUE(0);
out:
if(sc->ec_csr_res)
bus_release_resource(sc->ec_dev, SYS_RES_IOPORT, sc->ec_csr_rid,
sc->ec_csr_res);
if(sc->ec_data_res)
bus_release_resource(sc->ec_dev, SYS_RES_IOPORT, sc->ec_data_rid,
sc->ec_data_res);
return_VALUE(errval);
}
/*
* acpiec_attach:
*
* Autoconfiguration `attach' routine.
*/
void
acpiec_attach(struct device *parent, struct device *self, void *aux)
{
struct acpi_ec_softc *sc = (void *) self;
struct acpi_attach_args *aa = aux;
struct acpi_io *io0, *io1;
ACPI_STATUS rv;
FUNCTION_TRACE(__FUNCTION__);
printf(": ACPI Embedded Controller\n");
sc->sc_node = aa->aa_node;
/* Parse our resources. */
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "parsing EC resources\n"));
rv = acpi_resource_parse(&sc->sc_dev, sc->sc_node, &sc->sc_res,
&acpi_resource_parse_ops_default);
if (rv != AE_OK) {
printf("%s: unable to parse resources: %d\n",
sc->sc_dev.dv_xname, rv);
return;
}
sc->sc_data_st = aa->aa_iot;
io0 = acpi_res_io(&sc->sc_res, 0);
if (io0 == NULL) {
printf("%s: unable to find data register resource\n",
sc->sc_dev.dv_xname);
return;
}
if (bus_space_map(sc->sc_data_st, io0->ar_base, io0->ar_length,
0, &sc->sc_data_sh) != 0) {
printf("%s: unable to map data register\n",
sc->sc_dev.dv_xname);
return;
}
sc->sc_csr_st = aa->aa_iot;
io1 = acpi_res_io(&sc->sc_res, 1);
if (io1 == NULL) {
printf("%s: unable to find csr register resource\n",
sc->sc_dev.dv_xname);
return;
}
if (bus_space_map(sc->sc_csr_st, io1->ar_base, io1->ar_length,
0, &sc->sc_csr_sh) != 0) {
printf("%s: unable to map csr register\n",
sc->sc_dev.dv_xname);
return;
}
/*
* Install GPE handler.
*
* We evaluate the _GPE method to find the GPE bit used by the
* Embedded Controller to signal status (SCI).
*/
if ((rv = acpi_eval_integer(sc->sc_node->ad_handle, "_GPE",
&sc->sc_gpebit)) != AE_OK) {
printf("%s: unable to evaluate _GPE: %d\n",
sc->sc_dev.dv_xname, rv);
return;
}
/*
* Install a handler for this EC's GPE bit. Note that EC SCIs are
* treated as both edge- and level-triggered interrupts; in other words
* we clear the status bit immediately after getting an EC-SCI, then
* again after we're done processing the event. This guarantees that
* events we cause while performing a transaction (e.g. IBE/OBF) get
* cleared before re-enabling the GPE.
*/
if ((rv = AcpiInstallGpeHandler(sc->sc_gpebit,
ACPI_EVENT_LEVEL_TRIGGERED | ACPI_EVENT_EDGE_TRIGGERED,
EcGpeHandler, sc)) != AE_OK) {
printf("%s: unable to install GPE handler: %d\n",
sc->sc_dev.dv_xname, rv);
return;
}
/* Install address space handler. */
if ((rv = AcpiInstallAddressSpaceHandler(sc->sc_node->ad_handle,
ACPI_ADR_SPACE_EC, EcSpaceHandler, EcSpaceSetup, sc)) != AE_OK) {
printf("%s: unable to install address space handler: %d\n",
sc->sc_dev.dv_xname, rv);
return;
}
return_VOID;
}
ACPI_STATUS
AcpiEvPciConfigRegionSetup (
ACPI_HANDLE Handle,
UINT32 Function,
void *HandlerContext,
void **RegionContext)
{
ACPI_STATUS Status = AE_OK;
ACPI_INTEGER Temp;
ACPI_PCI_ID *PciId = *RegionContext;
ACPI_OPERAND_OBJECT *HandlerObj;
ACPI_NAMESPACE_NODE *Node;
ACPI_OPERAND_OBJECT *RegionObj = (ACPI_OPERAND_OBJECT *) Handle;
ACPI_DEVICE_ID ObjectHID;
ACPI_FUNCTION_TRACE ("EvPciConfigRegionSetup");
HandlerObj = RegionObj->Region.AddrHandler;
if (!HandlerObj)
{
/*
* No installed handler. This shouldn't happen because the dispatch
* routine checks before we get here, but we check again just in case.
*/
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
"Attempting to init a region %p, with no handler\n", RegionObj));
return_ACPI_STATUS (AE_NOT_EXIST);
}
if (Function == ACPI_REGION_DEACTIVATE)
{
if (PciId)
{
ACPI_MEM_FREE (PciId);
*RegionContext = NULL;
}
return_ACPI_STATUS (Status);
}
/* Create a new context */
PciId = ACPI_MEM_CALLOCATE (sizeof (ACPI_PCI_ID));
if (!PciId)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* For PCI Config space access, we have to pass the segment, bus,
* device and function numbers. This routine must acquire those.
*/
/*
* First get device and function numbers from the _ADR object
* in the parent's scope.
*/
Node = AcpiNsGetParentNode (RegionObj->Region.Node);
/* Evaluate the _ADR object */
Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR, Node, &Temp);
/*
* The default is zero, and since the allocation above zeroed
* the data, just do nothing on failure.
*/
if (ACPI_SUCCESS (Status))
{
PciId->Device = ACPI_HIWORD (ACPI_LODWORD (Temp));
PciId->Function = ACPI_LOWORD (ACPI_LODWORD (Temp));
}
/*
* Get the _SEG and _BBN values from the device upon which the handler
* is installed.
*
* We need to get the _SEG and _BBN objects relative to the PCI BUS device.
* This is the device the handler has been registered to handle.
*/
/*
* If the AddrHandler.Node is still pointing to the root, we need
* to scan upward for a PCI Root bridge and re-associate the OpRegion
* handlers with that device.
*/
if (HandlerObj->AddrHandler.Node == AcpiGbl_RootNode)
{
/*
* Node is currently the parent object
*/
while (Node != AcpiGbl_RootNode)
{
Status = AcpiUtExecute_HID (Node, &ObjectHID);
if (ACPI_SUCCESS (Status))
{
/* Got a valid _HID, check if this is a PCI root */
if (!(ACPI_STRNCMP (ObjectHID.Buffer, PCI_ROOT_HID_STRING,
sizeof (PCI_ROOT_HID_STRING))))
{
/* Install a handler for this PCI root bridge */
Status = AcpiInstallAddressSpaceHandler ((ACPI_HANDLE) Node,
ACPI_ADR_SPACE_PCI_CONFIG,
ACPI_DEFAULT_HANDLER, NULL, NULL);
if (ACPI_FAILURE (Status))
{
ACPI_REPORT_ERROR (("Could not install PciConfig handler for %4.4s, %s\n",
Node->Name.Ascii, AcpiFormatException (Status)));
}
break;
}
}
Node = AcpiNsGetParentNode (Node);
}
}
else
{
Node = HandlerObj->AddrHandler.Node;
}
/*
* The PCI segment number comes from the _SEG method
*/
Status = AcpiUtEvaluateNumericObject (METHOD_NAME__SEG, Node, &Temp);
if (ACPI_SUCCESS (Status))
{
PciId->Segment = ACPI_LOWORD (Temp);
}
/*
* The PCI bus number comes from the _BBN method
*/
Status = AcpiUtEvaluateNumericObject (METHOD_NAME__BBN, Node, &Temp);
if (ACPI_SUCCESS (Status))
{
PciId->Bus = ACPI_LOWORD (Temp);
}
/*
* Complete this device's PciId
*/
AcpiOsDerivePciId (Node, RegionObj->Region.Node, &PciId);
*RegionContext = PciId;
return_ACPI_STATUS (AE_OK);
}
