diff options
Diffstat (limited to 'EdkModulePkg/Bus/Pci/PciBus/Dxe/PciHotPlugSupport.c')
| -rw-r--r-- | EdkModulePkg/Bus/Pci/PciBus/Dxe/PciHotPlugSupport.c | 463 |
1 files changed, 0 insertions, 463 deletions
diff --git a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciHotPlugSupport.c b/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciHotPlugSupport.c deleted file mode 100644 index 3ef1daf69e..0000000000 --- a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciHotPlugSupport.c +++ /dev/null @@ -1,463 +0,0 @@ -/*++
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- PciHotPlugSupport.c
-
-Abstract:
-
-
-
-Revision History
-
---*/
-
-#include "Pcibus.h"
-#include "PciHotPlugSupport.h"
-
-EFI_PCI_HOT_PLUG_INIT_PROTOCOL *gPciHotPlugInit;
-EFI_HPC_LOCATION *gPciRootHpcPool;
-UINTN gPciRootHpcCount;
-ROOT_HPC_DATA *gPciRootHpcData;
-
-VOID
-EFIAPI
-PciHPCInitialized (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Event - add argument and description to function comment
-// TODO: Context - add argument and description to function comment
-{
- ROOT_HPC_DATA *HpcData;
-
- HpcData = (ROOT_HPC_DATA *) Context;
- HpcData->Initialized = TRUE;
-
-}
-
-BOOLEAN
-EfiCompareDevicePath (
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath1,
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath2
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: DevicePath1 - add argument and description to function comment
-// TODO: DevicePath2 - add argument and description to function comment
-{
- UINTN Size1;
- UINTN Size2;
-
- Size1 = GetDevicePathSize (DevicePath1);
- Size2 = GetDevicePathSize (DevicePath2);
-
- if (Size1 != Size2) {
- return FALSE;
- }
-
- if (CompareMem (DevicePath1, DevicePath2, Size1)) {
- return FALSE;
- }
-
- return TRUE;
-}
-
-EFI_STATUS
-InitializeHotPlugSupport (
- VOID
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: EFI_UNSUPPORTED - add return value to function comment
-// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_STATUS Status;
- EFI_HPC_LOCATION *HpcList;
- UINTN HpcCount;
-
- //
- // Locate the PciHotPlugInit Protocol
- // If it doesn't exist, that means there is no
- // hot plug controller supported on the platform
- // the PCI Bus driver is running on. HotPlug Support
- // is an optional feature, so absence of the protocol
- // won't incur the penalty
- //
- gPciHotPlugInit = NULL;
- gPciRootHpcPool = NULL;
- gPciRootHpcCount = 0;
- gPciRootHpcData = NULL;
-
- Status = gBS->LocateProtocol (
- &gEfiPciHotPlugInitProtocolGuid,
- NULL,
- (VOID **) &gPciHotPlugInit
- );
-
- if (EFI_ERROR (Status)) {
- return EFI_UNSUPPORTED;
- }
-
- Status = gPciHotPlugInit->GetRootHpcList (
- gPciHotPlugInit,
- &HpcCount,
- &HpcList
- );
-
- if (!EFI_ERROR (Status)) {
-
- gPciRootHpcPool = HpcList;
- gPciRootHpcCount = HpcCount;
- gPciRootHpcData = AllocateZeroPool (sizeof (ROOT_HPC_DATA) * gPciRootHpcCount);
- if (gPciRootHpcData == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- }
-
- return EFI_SUCCESS;
-}
-
-BOOLEAN
-IsRootPciHotPlugBus (
- IN EFI_DEVICE_PATH_PROTOCOL *HpbDevicePath,
- OUT UINTN *HpIndex
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
- HpcDevicePath - A pointer to the EFI_DEVICE_PATH_PROTOCOL.
- HpIndex - A pointer to the Index.
-
-Returns:
-
- None
-
---*/
-// TODO: HpbDevicePath - add argument and description to function comment
-{
- UINTN Index;
-
- for (Index = 0; Index < gPciRootHpcCount; Index++) {
-
- if (EfiCompareDevicePath (gPciRootHpcPool[Index].HpbDevicePath, HpbDevicePath)) {
-
- if (HpIndex != NULL) {
- *HpIndex = Index;
- }
-
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-BOOLEAN
-IsRootPciHotPlugController (
- IN EFI_DEVICE_PATH_PROTOCOL *HpcDevicePath,
- OUT UINTN *HpIndex
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
- HpcDevicePath - A pointer to the EFI_DEVICE_PATH_PROTOCOL.
- HpIndex - A pointer to the Index.
-
-Returns:
-
- None
-
---*/
-{
- UINTN Index;
-
- for (Index = 0; Index < gPciRootHpcCount; Index++) {
-
- if (EfiCompareDevicePath (gPciRootHpcPool[Index].HpcDevicePath, HpcDevicePath)) {
-
- if (HpIndex != NULL) {
- *HpIndex = Index;
- }
-
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-CreateEventForHpc (
- IN UINTN HpIndex,
- OUT EFI_EVENT *Event
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: HpIndex - add argument and description to function comment
-// TODO: Event - add argument and description to function comment
-{
- EFI_STATUS Status;
-
- Status = gBS->CreateEvent (
- EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
- PciHPCInitialized,
- gPciRootHpcData + HpIndex,
- &((gPciRootHpcData + HpIndex)->Event)
- );
-
- if (!EFI_ERROR (Status)) {
- *Event = (gPciRootHpcData + HpIndex)->Event;
- }
-
- return Status;
-}
-
-EFI_STATUS
-AllRootHPCInitialized (
- IN UINTN TimeoutInMicroSeconds
- )
-/*++
-
-Routine Description:
-
-Arguments:
- TimeoutInMicroSeconds - microseconds to wait for all root hpc's initialization
-
-Returns:
- EFI_SUCCESS - All root hpc's initialization is finished before the timeout
- EFI_TIMEOUT - Time out
-
---*/
-// TODO: TimeoutInMilliSeconds - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_TIMEOUT - add return value to function comment
-{
- UINT32 Delay;
- UINTN Index;
-
- Delay = (UINT32) ((TimeoutInMicroSeconds / 30) + 1);
- do {
-
- for (Index = 0; Index < gPciRootHpcCount; Index++) {
-
- if (!gPciRootHpcData[Index].Initialized) {
- break;
- }
- }
-
- if (Index == gPciRootHpcCount) {
- return EFI_SUCCESS;
- }
-
- //
- // Stall for 30 us
- //
- gBS->Stall (30);
-
- Delay--;
-
- } while (Delay);
-
- return EFI_TIMEOUT;
-}
-
-EFI_STATUS
-IsSHPC (
- PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_NOT_FOUND - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_NOT_FOUND - add return value to function comment
-{
-
- EFI_STATUS Status;
- UINT8 Offset;
-
- if (!PciIoDevice) {
- return EFI_NOT_FOUND;
- }
-
- Offset = 0;
- Status = LocateCapabilityRegBlock (
- PciIoDevice,
- EFI_PCI_CAPABILITY_ID_HOTPLUG,
- &Offset,
- NULL
- );
-
- //
- // If the PPB has the hot plug controller build-in,
- // then return TRUE;
- //
- if (!EFI_ERROR (Status)) {
- return EFI_SUCCESS;
- }
-
- return EFI_NOT_FOUND;
-}
-
-EFI_STATUS
-GetResourcePaddingForHpb (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_NOT_FOUND - add return value to function comment
-{
- EFI_STATUS Status;
- EFI_HPC_STATE State;
- UINT64 PciAddress;
- EFI_HPC_PADDING_ATTRIBUTES Attributes;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
-
- Status = IsPciHotPlugBus (PciIoDevice);
-
- if (!EFI_ERROR (Status)) {
- PciAddress = EFI_PCI_ADDRESS (PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber, 0);
- Status = gPciHotPlugInit->GetResourcePadding (
- gPciHotPlugInit,
- PciIoDevice->DevicePath,
- PciAddress,
- &State,
- (VOID **) &Descriptors,
- &Attributes
- );
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if ((State & EFI_HPC_STATE_ENABLED) && (State & EFI_HPC_STATE_INITIALIZED)) {
- PciIoDevice->ResourcePaddingDescriptors = Descriptors;
- PciIoDevice->PaddingAttributes = Attributes;
- }
-
- return EFI_SUCCESS;
- }
-
- return EFI_NOT_FOUND;
-}
-
-EFI_STATUS
-IsPciHotPlugBus (
- PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_NOT_FOUND - add return value to function comment
-{
- BOOLEAN Result;
- EFI_STATUS Status;
-
- Status = IsSHPC (PciIoDevice);
-
- //
- // If the PPB has the hot plug controller build-in,
- // then return TRUE;
- //
- if (!EFI_ERROR (Status)) {
- return EFI_SUCCESS;
- }
-
- //
- // Otherwise, see if it is a Root HPC
- //
- Result = IsRootPciHotPlugBus (PciIoDevice->DevicePath, NULL);
-
- if (Result) {
- return EFI_SUCCESS;
- }
-
- return EFI_NOT_FOUND;
-}
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