1 /*++ 2 3 Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR> 4 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 Module Name: 14 15 ArmGicDxe.c 16 17 Abstract: 18 19 Driver implementing the GIC interrupt controller protocol 20 21 --*/ 22 23 #include <PiDxe.h> 24 25 #include "ArmGicDxe.h" 26 27 /** 28 Initialize the state information for the CPU Architectural Protocol 29 30 @param ImageHandle of the loaded driver 31 @param SystemTable Pointer to the System Table 32 33 @retval EFI_SUCCESS Protocol registered 34 @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure 35 @retval EFI_DEVICE_ERROR Hardware problems 36 @retval EFI_UNSUPPORTED GIC version not supported 37 38 **/ 39 EFI_STATUS 40 InterruptDxeInitialize ( 41 IN EFI_HANDLE ImageHandle, 42 IN EFI_SYSTEM_TABLE *SystemTable 43 ) 44 { 45 EFI_STATUS Status; 46 ARM_GIC_ARCH_REVISION Revision; 47 48 Revision = ArmGicGetSupportedArchRevision (); 49 50 if (Revision == ARM_GIC_ARCH_REVISION_2) { 51 Status = GicV2DxeInitialize (ImageHandle, SystemTable); 52 } else if (Revision == ARM_GIC_ARCH_REVISION_3) { 53 Status = GicV3DxeInitialize (ImageHandle, SystemTable); 54 } else { 55 Status = EFI_UNSUPPORTED; 56 } 57 58 return Status; 59 } 60
