Adjust directory structures.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3322 6f19259b-4bc3-4df7-8a09-765794883524
2007-07-18 14:24:10 +00:00
parent a0741b93e1
commit 69b26c155a
53 changed files with 8 additions and 59 deletions
--- a/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciCommand.c
+++ b/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciCommand.c
@ -0,0 +1,207 @@
+/*++
+
+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;
+}