diff options
Diffstat (limited to 'Core/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c')
-rw-r--r-- | Core/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/Core/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c b/Core/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c new file mode 100644 index 0000000000..f5ae59fcb4 --- /dev/null +++ b/Core/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c @@ -0,0 +1,143 @@ +/** @file
+ Initialize Debug Agent in DXE by invoking Debug Agent Library.
+
+Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+#include <Guid/EventGroup.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DebugAgentLib.h>
+#include <Library/UefiLib.h>
+
+EFI_EVENT mExitBootServiceEvent;
+
+/**
+ One notified function to disable Debug Timer interrupt when gBS->ExitBootServices() called.
+
+ @param[in] Event Pointer to this event
+ @param[in] Context Event handler private data
+
+**/
+VOID
+EFIAPI
+DisableDebugTimerExitBootService (
+ EFI_EVENT Event,
+ VOID *Context
+ )
+
+{
+ SaveAndSetDebugTimerInterrupt (FALSE);
+}
+
+/**
+ The Entry Point for Debug Agent Dxe driver.
+
+ It will invoke Debug Agent Library to enable source debugging feature in DXE phase.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when initialzed Debug Agent.
+
+**/
+EFI_STATUS
+EFIAPI
+DebugAgentDxeInitialize(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ if (gST->ConOut != NULL) {
+ Print (L"If the Debug Port is serial port, please make sure this serial port isn't connected by");
+ Print (L" ISA Serial driver\r\n");
+ Print (L"You could do the following steps to disconnect the serial port:\r\n");
+ Print (L"1: Shell> drivers\r\n");
+ Print (L" ...\r\n");
+ Print (L" V VERSION E G G #D #C DRIVER NAME IMAGE NAME\r\n");
+ Print (L" == ======== = = = == == =================================== ===================\r\n");
+ Print (L" 8F 0000000A B - - 1 14 PCI Bus Driver PciBusDxe\r\n");
+ Print (L" 91 00000010 ? - - - - ATA Bus Driver AtaBusDxe\r\n");
+ Print (L" ...\r\n");
+ Print (L" A7 0000000A B - - 1 1 ISA Serial Driver IsaSerialDxe\r\n");
+ Print (L" ...\r\n");
+ Print (L"2: Shell> dh -d A7\r\n");
+ Print (L" A7: Image(IsaSerialDxe) ImageDevPath (..9FB3-11D4-9A3A-0090273FC14D))DriverBinding");
+ Print (L" ComponentName ComponentName2\r\n");
+ Print (L" Driver Name : ISA Serial Driver\r\n");
+ Print (L" Image Name : FvFile(93B80003-9FB3-11D4-9A3A-0090273FC14D)\r\n");
+ Print (L" Driver Version : 0000000A\r\n");
+ Print (L" Driver Type : BUS\r\n");
+ Print (L" Configuration : NO\r\n");
+ Print (L" Diagnostics : NO\r\n");
+ Print (L" Managing :\r\n");
+ Print (L" Ctrl[EA] : PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)\r\n");
+ Print (L" Child[EB] : PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)/Uart(115200,8,N,1)\r\n");
+ Print (L"3: Shell> disconnect EA\r\n");
+ Print (L"4: Shell> load -nc DebugAgentDxe.efi\r\n\r\n");
+ }
+ Status = EFI_UNSUPPORTED;
+ InitializeDebugAgent (DEBUG_AGENT_INIT_DXE_LOAD, &Status, NULL);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ if (gST->ConOut != NULL) {
+ Print (L"Debug Agent: Initialized successfully!\r\n\r\n");
+ }
+ //
+ // Create event to disable Debug Timer interrupt when exit boot service.
+ //
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ DisableDebugTimerExitBootService,
+ NULL,
+ &gEfiEventExitBootServicesGuid,
+ &mExitBootServiceEvent
+ );
+ return Status;
+}
+
+/**
+ This is the unload handle for Debug Agent Dxe driver.
+
+ It will invoke Debug Agent Library to disable source debugging feature.
+
+ @param[in] ImageHandle The drivers' driver image.
+
+ @retval EFI_SUCCESS The image is unloaded.
+ @retval Others Failed to unload the image.
+
+**/
+EFI_STATUS
+EFIAPI
+DebugAgentDxeUnload (
+ IN EFI_HANDLE ImageHandle
+ )
+{
+ EFI_STATUS Status;
+
+ Status = EFI_UNSUPPORTED;
+ InitializeDebugAgent (DEBUG_AGENT_INIT_DXE_UNLOAD, &Status, NULL);
+ switch (Status) {
+ case EFI_ACCESS_DENIED:
+ Print (L"Debug Agent: Host is still connected, please de-attach TARGET firstly!\r\n");
+ break;
+ case EFI_NOT_STARTED:
+ Print (L"Debug Agent: It hasn't been initialized, cannot unload it!\r\n");
+ break;
+ }
+
+ return Status;
+}
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