ACPI_STATUS
AcpiDisable (
void)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiDisable);
if (AcpiHwGetMode() == ACPI_SYS_MODE_LEGACY)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"System is already in legacy (non-ACPI) mode\n"));
}
else
{
/* Transition to LEGACY mode */
Status = AcpiHwSetMode (ACPI_SYS_MODE_LEGACY);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO,
"Could not exit ACPI mode to legacy mode"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI mode disabled\n"));
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiDisable (void)
{
ACPI_STATUS Status;
FUNCTION_TRACE ("AcpiDisable");
/* Ensure that ACPI has been initialized */
ACPI_IS_INITIALIZATION_COMPLETE (Status);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Restore original mode */
Status = AcpiHwSetMode (AcpiGbl_OriginalMode);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unable to transition to original mode"));
return_ACPI_STATUS (Status);
}
/* Unload the SCI interrupt handler */
AcpiEvRemoveSciHandler ();
AcpiEvRestoreAcpiState ();
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiDisable (void)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE ("AcpiDisable");
if (!AcpiGbl_FADT)
{
ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n"));
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
if (AcpiHwGetMode() == ACPI_SYS_MODE_LEGACY)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "System is already in legacy (non-ACPI) mode\n"));
}
else
{
/* Transition to LEGACY mode */
Status = AcpiHwSetMode (ACPI_SYS_MODE_LEGACY);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not exit ACPI mode to legacy mode"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI mode disabled\n"));
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiEnable (
void)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiEnable);
/* ACPI tables must be present */
if (AcpiGbl_FadtIndex == ACPI_INVALID_TABLE_INDEX)
{
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
/* If the Hardware Reduced flag is set, machine is always in acpi mode */
if (AcpiGbl_ReducedHardware)
{
return_ACPI_STATUS (AE_OK);
}
/* Check current mode */
if (AcpiHwGetMode() == ACPI_SYS_MODE_ACPI)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"System is already in ACPI mode\n"));
}
else
{
/* Transition to ACPI mode */
Status = AcpiHwSetMode (ACPI_SYS_MODE_ACPI);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO, "Could not transition to ACPI mode"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"Transition to ACPI mode successful\n"));
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiDisable (
void)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiDisable);
/* If the Hardware Reduced flag is set, machine is always in acpi mode */
if (AcpiGbl_ReducedHardware)
{
return_ACPI_STATUS (AE_OK);
}
if (AcpiHwGetMode() == ACPI_SYS_MODE_LEGACY)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"System is already in legacy (non-ACPI) mode\n"));
}
else
{
/* Transition to LEGACY mode */
Status = AcpiHwSetMode (ACPI_SYS_MODE_LEGACY);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO,
"Could not exit ACPI mode to legacy mode"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"ACPI mode disabled\n"));
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiEnable (
void)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (AcpiEnable);
/* ACPI tables must be present */
if (!AcpiTbTablesLoaded ())
{
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
/* Check current mode */
if (AcpiHwGetMode() == ACPI_SYS_MODE_ACPI)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "System is already in ACPI mode\n"));
}
else
{
/* Transition to ACPI mode */
Status = AcpiHwSetMode (ACPI_SYS_MODE_ACPI);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO, "Could not transition to ACPI mode"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"Transition to ACPI mode successful\n"));
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiEnable (void)
{
ACPI_STATUS Status;
FUNCTION_TRACE ("AcpiEnable");
/* Make sure we've got ACPI tables */
if (!AcpiGbl_DSDT)
{
ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No ACPI tables present!\n"));
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
/* Make sure the BIOS supports ACPI mode */
if (SYS_MODE_LEGACY == AcpiHwGetModeCapabilities())
{
ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Only legacy mode supported!\n"));
return_ACPI_STATUS (AE_ERROR);
}
/* Transition to ACPI mode */
Status = AcpiHwSetMode (SYS_MODE_ACPI);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_FATAL, "Could not transition to ACPI mode.\n"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_OK, "Transition to ACPI mode successful\n"));
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiEnable (void)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE ("AcpiEnable");
/* Make sure we have the FADT*/
if (!AcpiGbl_FADT)
{
ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n"));
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
if (AcpiHwGetMode() == ACPI_SYS_MODE_ACPI)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "System is already in ACPI mode\n"));
}
else
{
/* Transition to ACPI mode */
Status = AcpiHwSetMode (ACPI_SYS_MODE_ACPI);
if (ACPI_FAILURE (Status))
{
ACPI_REPORT_ERROR (("Could not transition to ACPI mode.\n"));
return_ACPI_STATUS (Status);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Transition to ACPI mode successful\n"));
}
return_ACPI_STATUS (Status);
}
