diff options
Diffstat (limited to 'EdkModulePkg/Bus/Pci/PciBus/Dxe/PciCommand.c')
| -rw-r--r-- | EdkModulePkg/Bus/Pci/PciBus/Dxe/PciCommand.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciCommand.c b/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciCommand.c deleted file mode 100644 index dd4b650612..0000000000 --- a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciCommand.c +++ /dev/null @@ -1,207 +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:
-
- PciCommand.c
-
-Abstract:
-
- PCI Bus Driver
-
-Revision History
-
---*/
-
-#include "pcibus.h"
-
-EFI_STATUS
-PciOperateRegister (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINT16 Command,
- IN UINT8 Offset,
- IN UINT8 Operation,
- OUT UINT16 *PtrCommand
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: Command - add argument and description to function comment
-// TODO: Offset - add argument and description to function comment
-// TODO: Operation - add argument and description to function comment
-// TODO: PtrCommand - add argument and description to function comment
-{
- UINT16 OldCommand;
- EFI_STATUS Status;
- EFI_PCI_IO_PROTOCOL *PciIo;
-
- OldCommand = 0;
- PciIo = &PciIoDevice->PciIo;
-
- if (Operation != EFI_SET_REGISTER) {
- Status = PciIoRead (
- PciIo,
- EfiPciIoWidthUint16,
- Offset,
- 1,
- &OldCommand
- );
-
- if (Operation == EFI_GET_REGISTER) {
- *PtrCommand = OldCommand;
- return Status;
- }
- }
-
- if (Operation == EFI_ENABLE_REGISTER) {
- OldCommand = (UINT16) (OldCommand | Command);
- } else if (Operation == EFI_DISABLE_REGISTER) {
- OldCommand = (UINT16) (OldCommand & ~(Command));
- } else {
- OldCommand = Command;
- }
-
- return PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- Offset,
- 1,
- &OldCommand
- );
-}
-
-BOOLEAN
-PciCapabilitySupport (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-{
-
- if (PciIoDevice->Pci.Hdr.Status & EFI_PCI_STATUS_CAPABILITY) {
- return TRUE;
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-LocateCapabilityRegBlock (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINT8 CapId,
- IN OUT UINT8 *Offset,
- OUT UINT8 *NextRegBlock OPTIONAL
- )
-/*++
-
-Routine Description:
- Locate cap reg.
-
-Arguments:
- PciIoDevice - A pointer to the PCI_IO_DEVICE.
- CapId - The cap ID.
- Offset - A pointer to the offset.
- NextRegBlock - A pointer to the next block.
-
-Returns:
-
- None
-
---*/
-// TODO: EFI_UNSUPPORTED - 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
-{
- UINT8 CapabilityPtr;
- UINT16 CapabilityEntry;
- UINT8 CapabilityID;
-
- //
- // To check the cpability of this device supports
- //
- if (!PciCapabilitySupport (PciIoDevice)) {
- return EFI_UNSUPPORTED;
- }
-
- if (*Offset != 0) {
- CapabilityPtr = *Offset;
- } else {
-
- CapabilityPtr = 0;
- if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
-
- PciIoRead (
- &PciIoDevice->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_CARDBUS_BRIDGE_CAPABILITY_PTR,
- 1,
- &CapabilityPtr
- );
- } else {
-
- PciIoRead (
- &PciIoDevice->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_CAPABILITY_PTR,
- 1,
- &CapabilityPtr
- );
- }
- }
-
- while (CapabilityPtr > 0x3F) {
- //
- // Mask it to DWORD alignment per PCI spec
- //
- CapabilityPtr &= 0xFC;
- PciIoRead (
- &PciIoDevice->PciIo,
- EfiPciIoWidthUint16,
- CapabilityPtr,
- 1,
- &CapabilityEntry
- );
-
- CapabilityID = (UINT8) CapabilityEntry;
-
- if (CapabilityID == CapId) {
- *Offset = CapabilityPtr;
- if (NextRegBlock != NULL) {
- *NextRegBlock = (UINT8) (CapabilityEntry >> 8);
- }
-
- return EFI_SUCCESS;
- }
-
- CapabilityPtr = (UINT8) (CapabilityEntry >> 8);
- }
-
- return EFI_NOT_FOUND;
-}
|