ACPI_STATUS
AcpiEvCreateGpeBlock (
ACPI_NAMESPACE_NODE *GpeDevice,
UINT64 Address,
UINT8 SpaceId,
UINT32 RegisterCount,
UINT16 GpeBlockBaseNumber,
UINT32 InterruptNumber,
ACPI_GPE_BLOCK_INFO **ReturnGpeBlock)
{
ACPI_STATUS Status;
ACPI_GPE_BLOCK_INFO *GpeBlock;
ACPI_GPE_WALK_INFO WalkInfo;
ACPI_FUNCTION_TRACE (EvCreateGpeBlock);
if (!RegisterCount)
{
return_ACPI_STATUS (AE_OK);
}
/* Allocate a new GPE block */
GpeBlock = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_BLOCK_INFO));
if (!GpeBlock)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Initialize the new GPE block */
GpeBlock->Address = Address;
GpeBlock->SpaceId = SpaceId;
GpeBlock->Node = GpeDevice;
GpeBlock->GpeCount = (UINT16) (RegisterCount * ACPI_GPE_REGISTER_WIDTH);
GpeBlock->Initialized = FALSE;
GpeBlock->RegisterCount = RegisterCount;
GpeBlock->BlockBaseNumber = GpeBlockBaseNumber;
/*
* Create the RegisterInfo and EventInfo sub-structures
* Note: disables and clears all GPEs in the block
*/
Status = AcpiEvCreateGpeInfoBlocks (GpeBlock);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (GpeBlock);
return_ACPI_STATUS (Status);
}
/* Install the new block in the global lists */
Status = AcpiEvInstallGpeBlock (GpeBlock, InterruptNumber);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (GpeBlock->RegisterInfo);
ACPI_FREE (GpeBlock->EventInfo);
ACPI_FREE (GpeBlock);
return_ACPI_STATUS (Status);
}
AcpiGbl_AllGpesInitialized = FALSE;
/* Find all GPE methods (_Lxx or_Exx) for this block */
WalkInfo.GpeBlock = GpeBlock;
WalkInfo.GpeDevice = GpeDevice;
WalkInfo.ExecuteByOwnerId = FALSE;
Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice,
ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
AcpiEvMatchGpeMethod, NULL, &WalkInfo, NULL);
/* Return the new block */
if (ReturnGpeBlock)
{
(*ReturnGpeBlock) = GpeBlock;
}
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
" Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X%s\n",
(UINT32) GpeBlock->BlockBaseNumber,
(UINT32) (GpeBlock->BlockBaseNumber + (GpeBlock->GpeCount - 1)),
GpeDevice->Name.Ascii, GpeBlock->RegisterCount, InterruptNumber,
InterruptNumber == AcpiGbl_FADT.SciInterrupt ? " (SCI)" : ""));
/* Update global count of currently available GPEs */
AcpiCurrentGpeCount += GpeBlock->GpeCount;
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
AcpiEvCreateGpeBlock (
ACPI_NAMESPACE_NODE *GpeDevice,
ACPI_GENERIC_ADDRESS *GpeBlockAddress,
UINT32 RegisterCount,
UINT8 GpeBlockBaseNumber,
UINT32 InterruptNumber,
ACPI_GPE_BLOCK_INFO **ReturnGpeBlock)
{
ACPI_STATUS Status;
ACPI_GPE_BLOCK_INFO *GpeBlock;
ACPI_FUNCTION_TRACE (EvCreateGpeBlock);
if (!RegisterCount)
{
return_ACPI_STATUS (AE_OK);
}
/* Allocate a new GPE block */
GpeBlock = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_BLOCK_INFO));
if (!GpeBlock)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Initialize the new GPE block */
GpeBlock->Node = GpeDevice;
GpeBlock->RegisterCount = RegisterCount;
GpeBlock->BlockBaseNumber = GpeBlockBaseNumber;
ACPI_MEMCPY (&GpeBlock->BlockAddress, GpeBlockAddress,
sizeof (ACPI_GENERIC_ADDRESS));
/*
* Create the RegisterInfo and EventInfo sub-structures
* Note: disables and clears all GPEs in the block
*/
Status = AcpiEvCreateGpeInfoBlocks (GpeBlock);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (GpeBlock);
return_ACPI_STATUS (Status);
}
/* Install the new block in the global lists */
Status = AcpiEvInstallGpeBlock (GpeBlock, InterruptNumber);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (GpeBlock);
return_ACPI_STATUS (Status);
}
/* Find all GPE methods (_Lxx, _Exx) for this block */
Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice,
ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
AcpiEvSaveMethodInfo, NULL, GpeBlock, NULL);
/* Return the new block */
if (ReturnGpeBlock)
{
(*ReturnGpeBlock) = GpeBlock;
}
ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
"GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n",
(UINT32) GpeBlock->BlockBaseNumber,
(UINT32) (GpeBlock->BlockBaseNumber +
((GpeBlock->RegisterCount * ACPI_GPE_REGISTER_WIDTH) -1)),
GpeDevice->Name.Ascii,
GpeBlock->RegisterCount,
InterruptNumber));
/* Update global count of currently available GPEs */
AcpiCurrentGpeCount += RegisterCount * ACPI_GPE_REGISTER_WIDTH;
return_ACPI_STATUS (AE_OK);
}
