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Diffstat (limited to 'src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/BusSpecificDriverOverride.h')
-rw-r--r-- | src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/BusSpecificDriverOverride.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/BusSpecificDriverOverride.h b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/BusSpecificDriverOverride.h new file mode 100644 index 0000000000..878458e9c8 --- /dev/null +++ b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/BusSpecificDriverOverride.h @@ -0,0 +1,66 @@ +/** @file + Bus Specific Driver Override protocol as defined in the UEFI 2.0 specification. + + Bus drivers that have a bus specific algorithm for matching drivers to controllers are + required to produce this protocol for each controller. For example, a PCI Bus Driver will produce an + instance of this protocol for every PCI controller that has a PCI option ROM that contains one or + more UEFI drivers. The protocol instance is attached to the handle of the PCI controller. + + Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef _EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL_H_ +#define _EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL_H_ + +/// +/// Global ID for the Bus Specific Driver Override Protocol +/// +#define EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL_GUID \ + { \ + 0x3bc1b285, 0x8a15, 0x4a82, {0xaa, 0xbf, 0x4d, 0x7d, 0x13, 0xfb, 0x32, 0x65 } \ + } + +typedef struct _EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL; + +// +// Prototypes for the Bus Specific Driver Override Protocol +// + +/** + 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(). + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_GET_DRIVER)( + IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL *This, + IN OUT EFI_HANDLE *DriverImageHandle + ); + +/// +/// This protocol matches one or more drivers to a controller. This protocol is produced by a bus driver, +/// and it is installed on the child handles of buses that require a bus specific algorithm for matching +/// drivers to controllers. +/// +struct _EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL { + EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_GET_DRIVER GetDriver; +}; + +extern EFI_GUID gEfiBusSpecificDriverOverrideProtocolGuid; + +#endif |