OvmfPkg/MptScsiDxe/MptScsi.c

   1 /** @file
   2
   3   This driver produces Extended SCSI Pass Thru Protocol instances for
   4   LSI Fusion MPT SCSI devices.
   5
   6   Copyright (C) 2020, Oracle and/or its affiliates.
   7
   8   SPDX-License-Identifier: BSD-2-Clause-Patent
   9
  10 **/
  11
  12 #include <Library/UefiLib.h>
  13 #include <Uefi/UefiSpec.h>
  14
  15 //
  16 // Higher versions will be used before lower, 0x10-0xffffffef is the version
  17 // range for IVH (Indie Hardware Vendors)
  18 //
  19 #define MPT_SCSI_BINDING_VERSION 0x10
  20
  21 //
  22 // Driver Binding
  23 //
  24
  25 STATIC
  26 EFI_STATUS
  27 EFIAPI
  28 MptScsiControllerSupported (
  29   IN EFI_DRIVER_BINDING_PROTOCOL            *This,
  30   IN EFI_HANDLE                             ControllerHandle,
  31   IN EFI_DEVICE_PATH_PROTOCOL               *RemainingDevicePath OPTIONAL
  32   )
  33 {
  34   return EFI_UNSUPPORTED;
  35 }
  36
  37 STATIC
  38 EFI_STATUS
  39 EFIAPI
  40 MptScsiControllerStart (
  41   IN EFI_DRIVER_BINDING_PROTOCOL            *This,
  42   IN EFI_HANDLE                             ControllerHandle,
  43   IN EFI_DEVICE_PATH_PROTOCOL               *RemainingDevicePath OPTIONAL
  44   )
  45 {
  46   return EFI_UNSUPPORTED;
  47 }
  48
  49 STATIC
  50 EFI_STATUS
  51 EFIAPI
  52 MptScsiControllerStop (
  53   IN EFI_DRIVER_BINDING_PROTOCOL            *This,
  54   IN  EFI_HANDLE                            ControllerHandle,
  55   IN  UINTN                                 NumberOfChildren,
  56   IN  EFI_HANDLE                            *ChildHandleBuffer
  57   )
  58 {
  59   return EFI_UNSUPPORTED;
  60 }
  61
  62 STATIC
  63 EFI_DRIVER_BINDING_PROTOCOL mMptScsiDriverBinding = {
  64   &MptScsiControllerSupported,
  65   &MptScsiControllerStart,
  66   &MptScsiControllerStop,
  67   MPT_SCSI_BINDING_VERSION,
  68   NULL, // ImageHandle, filled by EfiLibInstallDriverBindingComponentName2
  69   NULL, // DriverBindingHandle, filled as well
  70 };
  71
  72 //
  73 // Entry Point
  74 //
  75
  76 EFI_STATUS
  77 EFIAPI
  78 MptScsiEntryPoint (
  79   IN EFI_HANDLE       ImageHandle,
  80   IN EFI_SYSTEM_TABLE *SystemTable
  81   )
  82 {
  83   return EfiLibInstallDriverBindingComponentName2 (
  84            ImageHandle,
  85            SystemTable,
  86            &mMptScsiDriverBinding,
  87            ImageHandle, // The handle to install onto
  88            NULL, // TODO Component name
  89            NULL // TODO Component name
  90            );
  91 }