SourceLevelDebugPkg/DebugAgentDxe: Move help info from DxeDebugAgent

Now DxeDebugAgent Library instance will print help information on how to load
DebugAgentDxe.efi in UEFI shell. But it is printed after Target connected to
Host side. This fix is to move help info print to DebugAgentDxe module before
Target tries to connect HOST. It could help developer to get useful information
as early as possible.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17458 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 41 insertions, 1 deletions

diff --git a/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c b/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c
index a55c5eb49e..f5ae59fcb4 100644
--- a/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c
+++ b/SourceLevelDebugPkg/DebugAgentDxe/DebugAgentDxe.c
@@ -1,7 +1,7 @@
 /** @file

   Initialize Debug Agent in DXE by invoking Debug Agent Library.

 

-Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved.<BR>

+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        

@@ -16,6 +16,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Guid/EventGroup.h>

 #include <Library/UefiBootServicesTableLib.h>

 #include <Library/DebugAgentLib.h>

+#include <Library/UefiLib.h>

 

 EFI_EVENT       mExitBootServiceEvent; 

 

@@ -58,11 +59,42 @@ DebugAgentDxeInitialize(
 {

   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.

   //

@@ -98,6 +130,14 @@ DebugAgentDxeUnload (
 

   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;

 }