Produce all the PciIo & Dpath protocol for all the pci devices under the current host bridge.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4703 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8
@ -335,44 +335,48 @@ Returns:
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PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x3C, 1, &Data8);
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//
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// Process Platform OpRom
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// Process OpRom
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//
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if (gPciPlatformProtocol != NULL && !PciIoDevice->AllOpRomProcessed) {
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if (!PciIoDevice->AllOpRomProcessed) {
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PciIoDevice->AllOpRomProcessed = TRUE;
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Status = gPciPlatformProtocol->GetPciRom (
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gPciPlatformProtocol,
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PciIoDevice->Handle,
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&PlatformOpRomBuffer,
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&PlatformOpRomSize
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);
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//
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// Get the OpRom provided by platform
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//
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if (gPciPlatformProtocol != NULL) {
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Status = gPciPlatformProtocol->GetPciRom (
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gPciPlatformProtocol,
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PciIoDevice->Handle,
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&PlatformOpRomBuffer,
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&PlatformOpRomSize
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);
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if (!EFI_ERROR (Status)) {
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PciIoDevice->RomSize = PlatformOpRomSize;
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PciIoDevice->PciIo.RomSize = PlatformOpRomSize;
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PciIoDevice->PciIo.RomImage = PlatformOpRomBuffer;
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//
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// For OpROM read from gPciPlatformProtocol:
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// Add the Rom Image to internal database for later PCI light enumeration
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//
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PciRomAddImageMapping (
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NULL,
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PciIoDevice->PciRootBridgeIo->SegmentNumber,
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PciIoDevice->BusNumber,
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PciIoDevice->DeviceNumber,
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PciIoDevice->FunctionNumber,
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(UINT64) (UINTN) PciIoDevice->PciIo.RomImage,
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PciIoDevice->PciIo.RomSize
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);
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}
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}
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if (!EFI_ERROR (Status)) {
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//
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// Have Platform OpRom
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//
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PciIoDevice->RomSize = PlatformOpRomSize;
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PciIoDevice->PciIo.RomSize = PlatformOpRomSize;
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PciIoDevice->PciIo.RomImage = PlatformOpRomBuffer;
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//
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// For OpROM read from gPciPlatformProtocol:
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// Add the Rom Image to internal database for later PCI light enumeration
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//
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PciRomAddImageMapping (
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NULL,
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PciIoDevice->PciRootBridgeIo->SegmentNumber,
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PciIoDevice->BusNumber,
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PciIoDevice->DeviceNumber,
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PciIoDevice->FunctionNumber,
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(UINT64) (UINTN) PciIoDevice->PciIo.RomImage,
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PciIoDevice->PciIo.RomSize
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);
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//
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// Process Image
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//
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//
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// Dispatch the EFI OpRom for the PCI device.
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// The OpRom is got from platform in the above code
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// or loaded from device in previous bus enumeration
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//
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if (PciIoDevice->RomSize > 0) {
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ProcessOpRomImage (PciIoDevice);
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}
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}
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@ -659,7 +663,6 @@ Returns:
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// TODO: EFI_UNSUPPORTED - add return value to function comment
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// TODO: EFI_NOT_FOUND - add return value to function comment
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{
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PCI_IO_DEVICE *Temp;
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PCI_IO_DEVICE *PciIoDevice;
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EFI_DEV_PATH_PTR Node;
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EFI_DEVICE_PATH_PROTOCOL *CurrentDevicePath;
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@ -671,13 +674,13 @@ Returns:
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while (CurrentLink && CurrentLink != &RootBridge->ChildList) {
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Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
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PciIoDevice = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
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if (RemainingDevicePath != NULL) {
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Node.DevPath = RemainingDevicePath;
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if (Node.Pci->Device != Temp->DeviceNumber ||
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Node.Pci->Function != Temp->FunctionNumber) {
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if (Node.Pci->Device != PciIoDevice->DeviceNumber ||
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Node.Pci->Function != PciIoDevice->FunctionNumber) {
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CurrentLink = CurrentLink->ForwardLink;
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continue;
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}
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@ -685,30 +688,28 @@ Returns:
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//
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// Check if the device has been assigned with required resource
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//
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if (!Temp->Allocated) {
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if (!PciIoDevice->Allocated) {
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return EFI_NOT_READY;
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}
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//
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// Check if the current node has been registered before
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// If it is not, register it
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//
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if (!Temp->Registered) {
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PciIoDevice = Temp;
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if (!PciIoDevice->Registered) {
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Status = RegisterPciDevice (
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Controller,
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PciIoDevice,
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NULL
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);
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Controller,
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PciIoDevice,
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NULL
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);
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}
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if (NumberOfChildren != NULL && ChildHandleBuffer != NULL && Temp->Registered) {
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ChildHandleBuffer[*NumberOfChildren] = Temp->Handle;
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if (NumberOfChildren != NULL && ChildHandleBuffer != NULL && PciIoDevice->Registered) {
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ChildHandleBuffer[*NumberOfChildren] = PciIoDevice->Handle;
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(*NumberOfChildren)++;
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}
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//
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// Get the next device path
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//
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@ -720,28 +721,28 @@ Returns:
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//
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// If it is a PPB
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//
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if (!IsListEmpty (&Temp->ChildList)) {
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if (!IsListEmpty (&PciIoDevice->ChildList)) {
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Status = StartPciDevicesOnBridge (
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Controller,
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Temp,
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CurrentDevicePath,
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NumberOfChildren,
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ChildHandleBuffer
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);
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Controller,
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PciIoDevice,
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CurrentDevicePath,
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NumberOfChildren,
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ChildHandleBuffer
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);
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Temp->PciIo.Attributes (
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&(Temp->PciIo),
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EfiPciIoAttributeOperationSupported,
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0,
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&Supports
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);
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PciIoDevice->PciIo.Attributes (
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&(PciIoDevice->PciIo),
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EfiPciIoAttributeOperationSupported,
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0,
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&Supports
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);
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Supports &= EFI_PCI_DEVICE_ENABLE;
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Temp->PciIo.Attributes (
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&(Temp->PciIo),
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EfiPciIoAttributeOperationEnable,
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Supports,
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NULL
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);
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PciIoDevice->PciIo.Attributes (
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&(PciIoDevice->PciIo),
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EfiPciIoAttributeOperationEnable,
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Supports,
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NULL
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);
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return Status;
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} else {
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@ -759,50 +760,46 @@ Returns:
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// try to enable all the pci devices under this bridge
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//
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if (!Temp->Registered && Temp->Allocated) {
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PciIoDevice = Temp;
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if (!PciIoDevice->Registered && PciIoDevice->Allocated) {
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Status = RegisterPciDevice (
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Controller,
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PciIoDevice,
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NULL
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);
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Controller,
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PciIoDevice,
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NULL
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);
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}
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if (NumberOfChildren != NULL && ChildHandleBuffer != NULL && Temp->Registered) {
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ChildHandleBuffer[*NumberOfChildren] = Temp->Handle;
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if (NumberOfChildren != NULL && ChildHandleBuffer != NULL && PciIoDevice->Registered) {
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ChildHandleBuffer[*NumberOfChildren] = PciIoDevice->Handle;
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(*NumberOfChildren)++;
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}
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if (!IsListEmpty (&Temp->ChildList)) {
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if (!IsListEmpty (&PciIoDevice->ChildList)) {
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Status = StartPciDevicesOnBridge (
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Controller,
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Temp,
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RemainingDevicePath,
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NumberOfChildren,
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ChildHandleBuffer
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);
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Controller,
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PciIoDevice,
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RemainingDevicePath,
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NumberOfChildren,
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ChildHandleBuffer
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);
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Temp->PciIo.Attributes (
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&(Temp->PciIo),
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EfiPciIoAttributeOperationSupported,
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0,
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&Supports
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);
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PciIoDevice->PciIo.Attributes (
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&(PciIoDevice->PciIo),
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EfiPciIoAttributeOperationSupported,
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0,
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&Supports
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);
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Supports &= EFI_PCI_DEVICE_ENABLE;
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Temp->PciIo.Attributes (
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&(Temp->PciIo),
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EfiPciIoAttributeOperationEnable,
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Supports,
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NULL
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);
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PciIoDevice->PciIo.Attributes (
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&(PciIoDevice->PciIo),
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EfiPciIoAttributeOperationEnable,
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Supports,
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NULL
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);
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}
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CurrentLink = CurrentLink->ForwardLink;
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continue;
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}
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}
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@ -811,46 +808,31 @@ Returns:
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EFI_STATUS
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StartPciDevices (
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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IN EFI_HANDLE Controller
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)
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/*++
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Routine Description:
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Start to manage the PCI device according to RemainingDevicePath
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If RemainingDevicePath == NULL, the PCI bus driver will start
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to manage all the PCI devices it found previously
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Start to manage all the PCI devices it found previously under
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the entire host bridge.
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Arguments:
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Controller - An efi handle.
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RemainingDevicePath - A pointer to the EFI_DEVICE_PATH_PROTOCOL.
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Controller - root bridge handle.
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Returns:
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None
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--*/
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// TODO: EFI_UNSUPPORTED - add return value to function comment
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// TODO: EFI_SUCCESS - add return value to function comment
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{
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EFI_DEV_PATH_PTR Node;
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PCI_IO_DEVICE *RootBridge;
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EFI_HANDLE ThisHostBridge;
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LIST_ENTRY *CurrentLink;
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if (RemainingDevicePath != NULL) {
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//
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// Check if the RemainingDevicePath is valid
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//
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Node.DevPath = RemainingDevicePath;
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if ((Node.DevPath->Type != HARDWARE_DEVICE_PATH) ||
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((Node.DevPath->SubType != HW_PCI_DP) &&
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(DevicePathNodeLength (Node.DevPath) != sizeof (PCI_DEVICE_PATH)))
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) {
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return EFI_UNSUPPORTED;
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}
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}
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RootBridge = GetRootBridgeByHandle (Controller);
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ASSERT (RootBridge != NULL);
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ThisHostBridge = RootBridge->PciRootBridgeIo->ParentHandle;
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CurrentLink = gPciDevicePool.ForwardLink;
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@ -860,11 +842,11 @@ Returns:
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//
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// Locate the right root bridge to start
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//
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if (RootBridge->Handle == Controller) {
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if (RootBridge->PciRootBridgeIo->ParentHandle == ThisHostBridge) {
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StartPciDevicesOnBridge (
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Controller,
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RootBridge->Handle,
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RootBridge,
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RemainingDevicePath,
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NULL,
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NULL,
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NULL
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);
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@ -1007,40 +989,6 @@ Returns:
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return NULL;
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}
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BOOLEAN
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RootBridgeExisted (
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IN EFI_HANDLE RootBridgeHandle
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)
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/*++
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Routine Description:
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This function searches if RootBridgeHandle has already existed
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in current device pool.
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If so, it means the given root bridge has been already enumerated.
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Arguments:
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RootBridgeHandle - An efi handle.
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Returns:
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None
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--*/
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{
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PCI_IO_DEVICE *Bridge;
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Bridge = GetRootBridgeByHandle (RootBridgeHandle);
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if (Bridge != NULL) {
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return TRUE;
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}
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return FALSE;
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}
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BOOLEAN
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PciDeviceExisted (
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IN PCI_IO_DEVICE *Bridge,
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Reference in New Issue
Block a user