static ACPI_STATUS
EcTransaction(struct acpi_ec_softc *sc, EC_REQUEST *EcRequest)
{
ACPI_STATUS Status;
/*
* Lock the EC
*/
if (ACPI_FAILURE(Status = EcLock(sc)))
return(Status);
/*
* Perform the transaction.
*/
switch (EcRequest->Command) {
case EC_COMMAND_READ:
Status = EcRead(sc, EcRequest->Address, &(EcRequest->Data));
break;
case EC_COMMAND_WRITE:
Status = EcWrite(sc, EcRequest->Address, &(EcRequest->Data));
break;
default:
Status = AE_SUPPORT;
break;
}
/*
* Unlock the EC
*/
EcUnlock(sc);
/*
* Clear & Re-Enable the EC GPE:
* -----------------------------
* 'Consume' any EC GPE events that we generated while performing
* the transaction (e.g. IBF/OBF). Clearing the GPE here shouldn't
* have an adverse affect on outstanding EC-SCI's, as the source
* (EC-SCI) will still be high and thus should trigger the GPE
* immediately after we re-enabling it.
*/
if (sc->ec_pendquery){
if (ACPI_FAILURE(AcpiOsQueueForExecution(OSD_PRIORITY_HIGH,
EcGpeQueryHandler, sc)))
printf("Pend Query Queuing Failed\n");
sc->ec_pendquery = 0;
}
if (ACPI_FAILURE(AcpiClearEvent(sc->ec_gpebit, ACPI_EVENT_GPE)))
ACPI_VPRINT(sc->ec_dev, acpi_device_get_parent_softc(sc->ec_dev),
"EcRequest: Unable to clear the EC GPE.\n");
if (ACPI_FAILURE(AcpiEnableEvent(sc->ec_gpebit, ACPI_EVENT_GPE, 0)))
ACPI_VPRINT(sc->ec_dev, acpi_device_get_parent_softc(sc->ec_dev),
"EcRequest: Unable to re-enable the EC GPE.\n");
return(Status);
}
static ACPI_STATUS
EcTransaction(struct acpi_ec_softc *sc, EC_REQUEST *EcRequest)
{
ACPI_STATUS Status;
if ((Status = EcLock(sc)) != AE_OK)
return (Status);
/*
* Perform the transaction.
*/
switch (EcRequest->Command) {
case EC_COMMAND_READ:
Status = EcRead(sc, EcRequest->Address, &(EcRequest->Data));
break;
case EC_COMMAND_WRITE:
Status = EcWrite(sc, EcRequest->Address, &(EcRequest->Data));
break;
default:
Status = AE_SUPPORT;
break;
}
/*
* Clear & Re-Enable the EC GPE:
* -----------------------------
* 'Consume' any EC GPE events that we generated while performing
* the transaction (e.g. IBF/OBF). Clearing the GPE here shouldn't
* have an adverse affect on outstanding EC-SCI's, as the source
* (EC-SCI) will still be high and thus should trigger the GPE
* immediately after we re-enabling it.
*/
if (sc->sc_flags & EC_F_PENDQUERY) {
if (AcpiOsQueueForExecution(OSD_PRIORITY_HIGH,
EcGpeQueryHandler, sc) != AE_OK)
printf("%s: unable to queue pending query\n",
sc->sc_dev.dv_xname);
sc->sc_flags &= ~EC_F_PENDQUERY;
}
if (AcpiClearEvent(sc->sc_gpebit, ACPI_EVENT_GPE) != AE_OK)
printf("%s: EcRequest: unable to clear EC GPE\n",
sc->sc_dev.dv_xname);
if (AcpiEnableEvent(sc->sc_gpebit, ACPI_EVENT_GPE) != AE_OK)
printf("%s: EcRequest: unable to reenable EC GPE\n",
sc->sc_dev.dv_xname);
EcUnlock(sc);
return(Status);
}
static int
acpi_button_attach(device_t dev)
{
struct acpi_prw_data prw;
struct acpi_button_softc *sc;
ACPI_STATUS status;
int event;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
sc = device_get_softc(dev);
sc->button_dev = dev;
sc->button_handle = acpi_get_handle(dev);
event = (sc->button_type == ACPI_SLEEP_BUTTON) ?
ACPI_EVENT_SLEEP_BUTTON : ACPI_EVENT_POWER_BUTTON;
/*
* Install the new handler. We could remove any fixed handlers added
* from the FADT once we have a duplicate from the AML but some systems
* only return events on one or the other so we have to keep both.
*/
if (sc->fixed) {
AcpiClearEvent(event);
status = AcpiInstallFixedEventHandler(event,
acpi_button_fixed_handler, sc);
} else {
/*
* If a system does not get lid events, it may make sense to change
* the type to ACPI_ALL_NOTIFY. Some systems generate both a wake
* and runtime notify in that case though.
*/
status = AcpiInstallNotifyHandler(sc->button_handle,
ACPI_DEVICE_NOTIFY, acpi_button_notify_handler, sc);
}
if (ACPI_FAILURE(status)) {
device_printf(sc->button_dev, "couldn't install notify handler - %s\n",
AcpiFormatException(status));
return_VALUE (ENXIO);
}
/* Enable the GPE for wake/runtime */
acpi_wake_set_enable(dev, 1);
if (acpi_parse_prw(sc->button_handle, &prw) == 0)
AcpiEnableGpe(prw.gpe_handle, prw.gpe_bit);
return_VALUE (0);
}
void
reset_fixed_event(uint32 event)
{
AcpiClearEvent(event);
}
ACPI_STATUS
AtFixedEventsCommon(
UINT32 ApiCall,
UINT32 CheckAction,
ACPI_STATUS ExpectedStatus)
{
ACPI_STATUS Status;
UINT32 Event, Flags = 0;
UINT32 i;
char *ApiCallName;
ACPI_EVENT_STATUS EventStatus, *EventStatusPointer = &EventStatus;
Status = AtSubsystemInit(
AAPITS_INI_DEF,
AAPITS_EN_FLAGS, AAPITS_OI_FLAGS, NULL);
if (ACPI_FAILURE(Status))
{
return (Status);
}
for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
{
switch (i)
{
case 0:
Event = ACPI_EVENT_PMTIMER;
break;
case 1:
Event = ACPI_EVENT_GLOBAL;
break;
case 2:
Event = ACPI_EVENT_POWER_BUTTON;
break;
case 3:
Event = ACPI_EVENT_SLEEP_BUTTON;
break;
case 4:
Event = ACPI_EVENT_RTC;
break;
default:
TestErrors++;
printf ("Test Error: the number of Fixed Events (%d) too big (should be 5)\n",
ACPI_NUM_FIXED_EVENTS);
return (AE_ERROR);
}
if (CheckAction == 1)
{
Event += ACPI_NUM_FIXED_EVENTS;
}
else if (CheckAction == 2)
{
EventStatusPointer = NULL;
}
switch (ApiCall)
{
case 0:
ApiCallName = "AcpiEnableEvent";
Status = AcpiEnableEvent(Event, Flags);
break;
case 1:
ApiCallName = "AcpiDisableEvent";
Status = AcpiDisableEvent(Event, Flags);
break;
case 2:
ApiCallName = "AcpiClearEvent";
Status = AcpiClearEvent(Event);
break;
case 3:
ApiCallName = "AcpiGetEventStatus";
Status = AcpiGetEventStatus(Event, EventStatusPointer);
break;
default:
TestErrors++;
printf ("Test Error: the ApiCall number (%d) should be in range 0-3\n",
ApiCall);
return (AE_ERROR);
}
if (Status != ExpectedStatus)
{
AapiErrors++;
printf ("Api Error: %s(%d) returned %s, expected %s\n",
ApiCallName, Event, AcpiFormatException(Status),
AcpiFormatException(ExpectedStatus));
if (Status != AE_OK)
{
return (Status);
}
else
{
return (AE_ERROR);
}
}
}
return (AtTerminateCtrlCheck(AE_OK, ALL_STAT));
}
static void
EcGpeQueryHandler(void *Context)
{
struct acpi_ec_softc *sc = (struct acpi_ec_softc *)Context;
UINT8 Data;
ACPI_STATUS Status;
char qxx[5];
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
for (;;) {
/*
* Check EC_SCI.
*
* Bail out if the EC_SCI bit of the status register is not set.
* Note that this function should only be called when
* this bit is set (polling is used to detect IBE/OBF events).
*
* It is safe to do this without locking the controller, as it's
* OK to call EcQuery when there's no data ready; in the worst
* case we should just find nothing waiting for us and bail.
*/
if (!(EC_GET_CSR(sc) & EC_EVENT_SCI))
break;
/*
* Find out why the EC is signalling us
*/
Status = EcQuery(sc, &Data);
/*
* If we failed to get anything from the EC, give up
*/
if (ACPI_FAILURE(Status)) {
ACPI_VPRINT(sc->ec_dev, acpi_device_get_parent_softc(sc->ec_dev),
"GPE query failed - %s\n", AcpiFormatException(Status));
break;
}
/*
* Evaluate _Qxx to respond to the controller.
*/
sprintf(qxx, "_Q%02x", Data);
strupr(qxx);
Status = AcpiEvaluateObject(sc->ec_handle, qxx, NULL, NULL);
/*
* Ignore spurious query requests.
*/
if (ACPI_FAILURE(Status) && (Data != 0 || Status != AE_NOT_FOUND)) {
ACPI_VPRINT(sc->ec_dev, acpi_device_get_parent_softc(sc->ec_dev),
"evaluation of GPE query method %s failed - %s\n",
qxx, AcpiFormatException(Status));
}
}
/* I know I request Level trigger cleanup */
if (ACPI_FAILURE(AcpiClearEvent(sc->ec_gpebit, ACPI_EVENT_GPE)))
printf("EcGpeQueryHandler:ClearEvent Failed\n");
if (ACPI_FAILURE(AcpiEnableEvent(sc->ec_gpebit, ACPI_EVENT_GPE, 0)))
printf("EcGpeQueryHandler:EnableEvent Failed\n");
return_VOID;
}
static void
EcGpeQueryHandler(void *Context)
{
struct acpi_ec_softc *sc = Context;
UINT8 Data;
ACPI_STATUS Status;
char qxx[5];
FUNCTION_TRACE(__FUNCTION__);
for (;;) {
/*
* Check EC_SCI.
*
* Bail out if the EC_SCI bit of the status register is not
* set. Note that this function should only be called when
* this bit is set (polling is used to detect IBE/OBF events).
*
* It is safe to do this without locking the controller, as
* it's OK to call EcQuery when there's no data ready; in the
* worst case we should just find nothing waiting for us and
* bail.
*/
if ((EC_CSR_READ(sc) & EC_EVENT_SCI) == 0)
break;
/*
* Find out why the EC is signalling us
*/
Status = EcQuery(sc, &Data);
/*
* If we failed to get anything from the EC, give up.
*/
if (Status != AE_OK) {
printf("%s: GPE query failed: %d\n",
sc->sc_dev.dv_xname, Status);
break;
}
/*
* Evaluate _Qxx to respond to the controller.
*/
sprintf(qxx, "_Q%02x", Data);
strupr(qxx);
Status = AcpiEvaluateObject(sc->sc_node->ad_handle, qxx,
NULL, NULL);
/*
* Ignore spurious query requests.
*/
if (Status != AE_OK &&
(Data != 0 || Status != AE_NOT_FOUND)) {
printf("%s: evaluation of GPE query method %s "
"failed: %d\n", sc->sc_dev.dv_xname, qxx, Status);
}
}
/* I know I request Level trigger cleanup */
if (AcpiClearEvent(sc->sc_gpebit, ACPI_EVENT_GPE) != AE_OK)
printf("%s: AcpiClearEvent failed\n", sc->sc_dev.dv_xname);
if (AcpiEnableEvent(sc->sc_gpebit, ACPI_EVENT_GPE) != AE_OK)
printf("%s: AcpiEnableEvent failed\n", sc->sc_dev.dv_xname);
return_VOID;
}