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| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2018-08-23 10:34:33 +0800 |
|---|---|---|
| committer | Ruiyu Ni <ruiyu.ni@intel.com> | 2018-08-27 09:40:21 +0800 |
| commit | 06da1e310bcea971073a8dabc5c3d35bc190847c (patch) | |
| tree | d47013893ca1f6c433d14806ad56f7b510d310a1 /MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c | |
| parent | 6861765935d5b69803321ba6e43240845c7ab0e5 (diff) | |
| download | edk2-06da1e310bcea971073a8dabc5c3d35bc190847c.tar.gz edk2-06da1e310bcea971073a8dabc5c3d35bc190847c.tar.bz2 edk2-06da1e310bcea971073a8dabc5c3d35bc190847c.zip | |
MdeModulePkg/PciBus: Refine ActiveVGADeviceOnTheRootBridge
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1109
The patch doesn't change any behavior of this function.
It just renames the function to LocateVgaDevice() and renames
some parameters and local variables.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Diffstat (limited to 'MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c | 35 |
1 files changed, 16 insertions, 19 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c index f7039da992..5a4b830604 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c @@ -1002,7 +1002,7 @@ ActiveVGADeviceOnTheSameSegment ( if (Temp->PciRootBridgeIo->SegmentNumber == VgaDevice->PciRootBridgeIo->SegmentNumber) {
- Temp = ActiveVGADeviceOnTheRootBridge (Temp);
+ Temp = LocateVgaDevice (Temp);
if (Temp != NULL) {
return Temp;
@@ -1016,41 +1016,41 @@ ActiveVGADeviceOnTheSameSegment ( }
/**
- Get the active VGA device on the root bridge.
+ Locate the active VGA device under the bridge.
- @param RootBridge PCI IO instance for the root bridge.
+ @param Bridge PCI IO instance for the bridge.
@return The active VGA device.
**/
PCI_IO_DEVICE *
-ActiveVGADeviceOnTheRootBridge (
- IN PCI_IO_DEVICE *RootBridge
+LocateVgaDevice (
+ IN PCI_IO_DEVICE *Bridge
)
{
LIST_ENTRY *CurrentLink;
- PCI_IO_DEVICE *Temp;
+ PCI_IO_DEVICE *PciIoDevice;
- CurrentLink = RootBridge->ChildList.ForwardLink;
+ CurrentLink = Bridge->ChildList.ForwardLink;
- while (CurrentLink != NULL && CurrentLink != &RootBridge->ChildList) {
+ while (CurrentLink != NULL && CurrentLink != &Bridge->ChildList) {
- Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
+ PciIoDevice = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
- if (IS_PCI_VGA(&Temp->Pci) &&
- (Temp->Attributes &
+ if (IS_PCI_VGA(&PciIoDevice->Pci) &&
+ (PciIoDevice->Attributes &
(EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY |
EFI_PCI_IO_ATTRIBUTE_VGA_IO |
EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) != 0) {
- return Temp;
+ return PciIoDevice;
}
- if (IS_PCI_BRIDGE (&Temp->Pci)) {
+ if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
- Temp = ActiveVGADeviceOnTheRootBridge (Temp);
+ PciIoDevice = LocateVgaDevice (PciIoDevice);
- if (Temp != NULL) {
- return Temp;
+ if (PciIoDevice != NULL) {
+ return PciIoDevice;
}
}
@@ -1060,6 +1060,3 @@ ActiveVGADeviceOnTheRootBridge ( return NULL;
}
-
-
-
|