diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h new file mode 100644 index 00000000..ab058fa7 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h @@ -0,0 +1,83 @@ +/** @file + Functions declaration for Bus Specific Driver Override protocol. + +Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + + +#ifndef _EFI_PCI_DRIVER_OVERRRIDE_H_ +#define _EFI_PCI_DRIVER_OVERRRIDE_H_ + +#define DRIVER_OVERRIDE_SIGNATURE SIGNATURE_32 ('d', 'r', 'o', 'v') + +// +// PCI driver override driver image list +// +typedef struct { + UINT32 Signature; + LIST_ENTRY Link; + EFI_HANDLE DriverImageHandle; + EFI_DEVICE_PATH_PROTOCOL *DriverImagePath; +} PCI_DRIVER_OVERRIDE_LIST; + + +#define DRIVER_OVERRIDE_FROM_LINK(a) \ + CR (a, PCI_DRIVER_OVERRIDE_LIST, Link, DRIVER_OVERRIDE_SIGNATURE) + +/** + Initializes a PCI Driver Override Instance. + + @param PciIoDevice PCI Device instance. + +**/ +VOID +InitializePciDriverOverrideInstance ( + IN OUT PCI_IO_DEVICE *PciIoDevice + ); + +/** + Add an overriding driver image. + + @param PciIoDevice Instance of PciIo device. + @param DriverImageHandle Image handle of newly added driver image. + @param DriverImagePath Device path of newly added driver image. + + @retval EFI_SUCCESS Successfully added driver. + @retval EFI_OUT_OF_RESOURCES No memory resource for new driver instance. + @retval other Some error occurred when locating gEfiLoadedImageProtocolGuid. + +**/ +EFI_STATUS +AddDriver ( + IN PCI_IO_DEVICE *PciIoDevice, + IN EFI_HANDLE DriverImageHandle, + IN EFI_DEVICE_PATH_PROTOCOL *DriverImagePath + ); + + +/** + Uses a bus specific algorithm to retrieve a driver image handle for a controller. + + @param This A pointer to the EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL instance. + @param DriverImageHandle On input, a pointer to the previous driver image handle returned + by GetDriver(). On output, a pointer to the next driver + image handle. Passing in a NULL, will return the first driver + image handle. + + @retval EFI_SUCCESS A bus specific override driver is returned in DriverImageHandle. + @retval EFI_NOT_FOUND The end of the list of override drivers was reached. + A bus specific override driver is not returned in DriverImageHandle. + @retval EFI_INVALID_PARAMETER DriverImageHandle is not a handle that was returned on a + previous call to GetDriver(). + +**/ +EFI_STATUS +EFIAPI +GetDriver ( + IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL *This, + IN OUT EFI_HANDLE *DriverImageHandle + ); + +#endif |