mirror of https://github.com/acidanthera/audk.git
OVMF BDS: Implement routines to make it easier to scan through all PCI devices.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9274 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jljusten
parent
4b45b3cb20
commit
e955462be2
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@ -21,12 +21,51 @@
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VOID *mEfiDevPathNotifyReg;
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EFI_EVENT mEfiDevPathEvent;
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BOOLEAN mDetectVgaOnly;
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//
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// Type definitions
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//
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typedef
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EFI_STATUS
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(EFIAPI *PROTOCOL_INSTANCE_CALLBACK)(
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IN EFI_HANDLE Handle,
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IN VOID *Instance,
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IN VOID *Context
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);
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/**
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@param[in] Handle - Handle of PCI device instance
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@param[in] PciIo - PCI IO protocol instance
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@param[in] Pci - PCI Header register block
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**/
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typedef
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EFI_STATUS
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(EFIAPI *VISIT_PCI_INSTANCE_CALLBACK)(
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IN EFI_HANDLE Handle,
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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IN PCI_TYPE00 *Pci
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);
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//
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// Function prototypes
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//
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EFI_STATUS
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VisitAllInstancesOfProtocol (
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IN EFI_GUID *Id,
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IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,
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IN VOID *Context
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);
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EFI_STATUS
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VisitAllPciInstancesOfProtocol (
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IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
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);
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VOID
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InstallDevicePathCallback (
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VOID
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@ -399,32 +438,17 @@ Returns:
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}
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EFI_STATUS
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DetectAndPreparePlatformPciDevicePath (
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BOOLEAN DetectVgaOnly
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VisitAllInstancesOfProtocol (
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IN EFI_GUID *Id,
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IN PROTOCOL_INSTANCE_CALLBACK CallBackFunction,
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IN VOID *Context
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)
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/*++
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Routine Description:
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Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
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Arguments:
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DetectVgaOnly - Only detect VGA device if it's TRUE.
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Returns:
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EFI_SUCCESS - PCI Device check and Console variable update successfully.
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EFI_STATUS - PCI Device check or Console variable update fail.
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--*/
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{
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EFI_STATUS Status;
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UINTN HandleCount;
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EFI_HANDLE *HandleBuffer;
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UINTN Index;
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EFI_PCI_IO_PROTOCOL *PciIo;
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PCI_TYPE00 Pci;
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VOID *Instance;
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//
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// Start to check all the PciIo to find all possible device
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@ -433,7 +457,7 @@ Returns:
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HandleBuffer = NULL;
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Status = gBS->LocateHandleBuffer (
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ByProtocol,
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&gEfiPciIoProtocolGuid,
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Id,
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NULL,
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&HandleCount,
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&HandleBuffer
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@ -443,11 +467,38 @@ Returns:
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}
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for (Index = 0; Index < HandleCount; Index++) {
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Status = gBS->HandleProtocol (HandleBuffer[Index], &gEfiPciIoProtocolGuid, (VOID*)&PciIo);
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Status = gBS->HandleProtocol (HandleBuffer[Index], Id, &Instance);
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if (EFI_ERROR (Status)) {
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continue;
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}
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Status = (*CallBackFunction) (
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HandleBuffer[Index],
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Instance,
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Context
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);
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}
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gBS->FreePool (HandleBuffer);
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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VisitingAPciInstance (
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IN EFI_HANDLE Handle,
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IN VOID *Instance,
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IN VOID *Context
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)
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{
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EFI_STATUS Status;
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EFI_PCI_IO_PROTOCOL *PciIo;
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PCI_TYPE00 Pci;
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PciIo = (EFI_PCI_IO_PROTOCOL*) Instance;
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//
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// Check for all PCI device
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//
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@ -459,9 +510,53 @@ Returns:
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&Pci
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);
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if (EFI_ERROR (Status)) {
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continue;
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return Status;
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}
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return (*(VISIT_PCI_INSTANCE_CALLBACK) Context) (
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Handle,
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PciIo,
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&Pci
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);
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}
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EFI_STATUS
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VisitAllPciInstances (
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IN VISIT_PCI_INSTANCE_CALLBACK CallBackFunction
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)
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{
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return VisitAllInstancesOfProtocol (
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&gEfiPciIoProtocolGuid,
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VisitingAPciInstance,
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(VOID*) CallBackFunction
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);
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}
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/**
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Do platform specific PCI Device check and add them to
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ConOut, ConIn, ErrOut.
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@param[in] Handle - Handle of PCI device instance
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@param[in] PciIo - PCI IO protocol instance
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@param[in] Pci - PCI Header register block
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@retval EFI_SUCCESS - PCI Device check and Console variable update successfully.
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@retval EFI_STATUS - PCI Device check or Console variable update fail.
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**/
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EFI_STATUS
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DetectAndPreparePlatformPciDevicePath (
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IN EFI_HANDLE Handle,
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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IN PCI_TYPE00 *Pci
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)
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{
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EFI_STATUS Status;
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Status = PciIo->Attributes (
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PciIo,
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EfiPciIoAttributeOperationEnable,
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@ -470,14 +565,14 @@ Returns:
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);
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ASSERT_EFI_ERROR (Status);
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if (!DetectVgaOnly) {
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if (!mDetectVgaOnly) {
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//
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// Here we decide whether it is LPC Bridge
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//
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if ((IS_PCI_LPC (&Pci)) ||
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((IS_PCI_ISA_PDECODE (&Pci)) &&
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(Pci.Hdr.VendorId == 0x8086) &&
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(Pci.Hdr.DeviceId == 0x7000)
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if ((IS_PCI_LPC (Pci)) ||
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((IS_PCI_ISA_PDECODE (Pci)) &&
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(Pci->Hdr.VendorId == 0x8086) &&
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(Pci->Hdr.DeviceId == 0x7000)
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)
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) {
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//
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@ -485,40 +580,56 @@ Returns:
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// add IsaSerial to ConOut, ConIn, ErrOut
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//
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DEBUG ((EFI_D_INFO, "Found LPC Bridge device\n"));
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PrepareLpcBridgeDevicePath (HandleBuffer[Index]);
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continue;
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PrepareLpcBridgeDevicePath (Handle);
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return EFI_SUCCESS;
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}
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//
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// Here we decide which Serial device to enable in PCI bus
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//
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if (IS_PCI_16550SERIAL (&Pci)) {
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if (IS_PCI_16550SERIAL (Pci)) {
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//
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// Add them to ConOut, ConIn, ErrOut.
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//
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DEBUG ((EFI_D_INFO, "Found PCI 16550 SERIAL device\n"));
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PreparePciSerialDevicePath (HandleBuffer[Index]);
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continue;
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PreparePciSerialDevicePath (Handle);
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return EFI_SUCCESS;
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}
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}
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//
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// Here we decide which VGA device to enable in PCI bus
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//
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if (IS_PCI_VGA (&Pci)) {
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if (IS_PCI_VGA (Pci)) {
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//
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// Add them to ConOut.
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//
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DEBUG ((EFI_D_INFO, "Found PCI VGA device\n"));
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PreparePciVgaDevicePath (HandleBuffer[Index]);
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continue;
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}
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}
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gBS->FreePool (HandleBuffer);
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PreparePciVgaDevicePath (Handle);
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return EFI_SUCCESS;
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}
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return Status;
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}
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/**
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Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
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@param[in] DetectVgaOnly - Only detect VGA device if it's TRUE.
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@retval EFI_SUCCESS - PCI Device check and Console variable update successfully.
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@retval EFI_STATUS - PCI Device check or Console variable update fail.
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**/
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EFI_STATUS
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DetectAndPreparePlatformPciDevicePaths (
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BOOLEAN DetectVgaOnly
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)
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{
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mDetectVgaOnly = DetectVgaOnly;
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return VisitAllPciInstances (DetectAndPreparePlatformPciDevicePath);
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}
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EFI_STATUS
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PlatformBdsConnectConsole (
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@ -572,7 +683,7 @@ Returns:
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//
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// Do platform specific PCI Device check and add them to ConOut, ConIn, ErrOut
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//
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DetectAndPreparePlatformPciDevicePath (FALSE);
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DetectAndPreparePlatformPciDevicePaths (FALSE);
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//
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// Have chance to connect the platform default console,
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@ -597,7 +708,7 @@ Returns:
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//
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// Only detect VGA device and add them to ConOut
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//
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DetectAndPreparePlatformPciDevicePath (TRUE);
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DetectAndPreparePlatformPciDevicePaths (TRUE);
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}
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//
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