#include <Library/DebugLib.h>\r
#include <Library/DevicePathLib.h>\r
#include <Library/HiiLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/PrintLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/UefiHiiServicesLib.h>\r
#include <Protocol/DevicePath.h>\r
+#include <Protocol/GraphicsOutput.h>\r
#include <Protocol/HiiConfigAccess.h>\r
#include <Guid/MdeModuleHii.h>\r
#include <Guid/OvmfPlatformConfig.h>\r
extern UINT8 PlatformDxeStrings[];\r
extern UINT8 PlatformFormsBin[];\r
\r
+//\r
+// We want to be notified about GOP installations until we find one GOP\r
+// interface that lets us populate the form.\r
+//\r
+STATIC EFI_EVENT mGopEvent;\r
+\r
+//\r
+// The registration record underneath this pointer allows us to iterate through\r
+// the GOP instances one by one.\r
+//\r
+STATIC VOID *mGopTracker;\r
+\r
+//\r
+// Cache the resolutions we get from the GOP.\r
+//\r
+typedef struct {\r
+ UINT32 X;\r
+ UINT32 Y;\r
+} GOP_MODE;\r
+\r
+STATIC UINTN mNumGopModes;\r
+STATIC GOP_MODE *mGopModes;\r
+\r
\r
/**\r
This function is called by the HII machinery when it fetches the form state.\r
}\r
\r
\r
+/**\r
+ Query and save all resolutions supported by the GOP.\r
+\r
+ @param[in] Gop The Graphics Output Protocol instance to query.\r
+\r
+ @param[out] NumGopModes The number of modes supported by the GOP. On output,\r
+ this parameter will be positive.\r
+\r
+ @param[out] GopModes On output, a dynamically allocated array containing\r
+ the resolutions returned by the GOP. The caller is\r
+ responsible for freeing the array after use.\r
+\r
+ @retval EFI_UNSUPPORTED No modes found.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate GopModes.\r
+ @return Error codes from Gop->QueryMode().\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+QueryGopModes (\r
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop,\r
+ OUT UINTN *NumGopModes,\r
+ OUT GOP_MODE **GopModes\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINT32 ModeNumber;\r
+\r
+ if (Gop->Mode->MaxMode == 0) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+ *NumGopModes = Gop->Mode->MaxMode;\r
+\r
+ *GopModes = AllocatePool (Gop->Mode->MaxMode * sizeof **GopModes);\r
+ if (*GopModes == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ for (ModeNumber = 0; ModeNumber < Gop->Mode->MaxMode; ++ModeNumber) {\r
+ EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;\r
+ UINTN SizeOfInfo;\r
+\r
+ Status = Gop->QueryMode (Gop, ModeNumber, &SizeOfInfo, &Info);\r
+ if (EFI_ERROR (Status)) {\r
+ goto FreeGopModes;\r
+ }\r
+\r
+ (*GopModes)[ModeNumber].X = Info->HorizontalResolution;\r
+ (*GopModes)[ModeNumber].Y = Info->VerticalResolution;\r
+ FreePool (Info);\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+\r
+FreeGopModes:\r
+ FreePool (*GopModes);\r
+\r
+ return Status;\r
+}\r
+\r
+\r
/**\r
Create a set of "one-of-many" (ie. "drop down list") option IFR opcodes,\r
based on available GOP resolutions, to be placed under a "one-of-many" (ie.\r
resolutions. The caller is responsible for freeing\r
OpCodeBuffer with HiiFreeOpCodeHandle() after use.\r
\r
+ @param[in] NumGopModes Number of entries in GopModes.\r
+\r
+ @param[in] GopModes Array of resolutions retrieved from the GOP.\r
+\r
@retval EFI_SUCESS Opcodes have been successfully produced.\r
\r
@return Status codes from underlying functions. PackageList may\r
EFIAPI\r
CreateResolutionOptions (\r
IN EFI_HII_HANDLE *PackageList,\r
- OUT VOID **OpCodeBuffer\r
+ OUT VOID **OpCodeBuffer,\r
+ IN UINTN NumGopModes,\r
+ IN GOP_MODE *GopModes\r
)\r
{\r
- EFI_STATUS Status;\r
- VOID *OutputBuffer;\r
- EFI_STRING_ID NewString;\r
- VOID *OpCode;\r
+ EFI_STATUS Status;\r
+ VOID *OutputBuffer;\r
+ UINTN ModeNumber;\r
\r
OutputBuffer = HiiAllocateOpCodeHandle ();\r
if (OutputBuffer == NULL) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
\r
- NewString = HiiSetString (PackageList, 0 /* new string */, L"800x600",\r
- NULL /* for all languages */);\r
- if (NewString == 0) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto FreeOutputBuffer;\r
- }\r
- OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,\r
- 0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, 0 /* Value */);\r
- if (OpCode == NULL) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto FreeOutputBuffer;\r
+ for (ModeNumber = 0; ModeNumber < NumGopModes; ++ModeNumber) {\r
+ CHAR16 Desc[MAXSIZE_RES_CUR];\r
+ EFI_STRING_ID NewString;\r
+ VOID *OpCode;\r
+\r
+ UnicodeSPrintAsciiFormat (Desc, sizeof Desc, "%Ldx%Ld",\r
+ (INT64) GopModes[ModeNumber].X, (INT64) GopModes[ModeNumber].Y);\r
+ NewString = HiiSetString (PackageList, 0 /* new string */, Desc,\r
+ NULL /* for all languages */);\r
+ if (NewString == 0) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto FreeOutputBuffer;\r
+ }\r
+ OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,\r
+ 0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, ModeNumber);\r
+ if (OpCode == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto FreeOutputBuffer;\r
+ }\r
}\r
\r
*OpCodeBuffer = OutputBuffer;\r
Populate the form identified by the (PackageList, FormSetGuid, FormId)\r
triplet.\r
\r
+ The drop down list of video resolutions is generated from (NumGopModes,\r
+ GopModes).\r
+\r
@retval EFI_SUCESS Form successfully updated.\r
@return Status codes from underlying functions.\r
\r
PopulateForm (\r
IN EFI_HII_HANDLE *PackageList,\r
IN EFI_GUID *FormSetGuid,\r
- IN EFI_FORM_ID FormId\r
+ IN EFI_FORM_ID FormId,\r
+ IN UINTN NumGopModes,\r
+ IN GOP_MODE *GopModes\r
)\r
{\r
EFI_STATUS Status;\r
//\r
// 3.1. Get a list of resolutions.\r
//\r
- Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2);\r
+ Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2,\r
+ NumGopModes, GopModes);\r
if (EFI_ERROR (Status)) {\r
goto FreeOpCodeBuffer;\r
}\r
}\r
\r
\r
+/**\r
+ Notification callback for GOP interface installation.\r
+\r
+ @param[in] Event Event whose notification function is being invoked.\r
+\r
+ @param[in] Context The pointer to the notification function's context, which\r
+ is implementation-dependent.\r
+**/\r
+STATIC\r
+VOID\r
+EFIAPI\r
+GopInstalled (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop;\r
+\r
+ ASSERT (Event == mGopEvent);\r
+\r
+ //\r
+ // Check further GOPs.\r
+ //\r
+ for (;;) {\r
+ mNumGopModes = 0;\r
+ mGopModes = NULL;\r
+\r
+ Status = gBS->LocateProtocol (&gEfiGraphicsOutputProtocolGuid, mGopTracker,\r
+ (VOID **) &Gop);\r
+ if (EFI_ERROR (Status)) {\r
+ return;\r
+ }\r
+\r
+ Status = QueryGopModes (Gop, &mNumGopModes, &mGopModes);\r
+ if (EFI_ERROR (Status)) {\r
+ continue;\r
+ }\r
+\r
+ Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,\r
+ FORMID_MAIN_FORM, mNumGopModes, mGopModes);\r
+ if (EFI_ERROR (Status)) {\r
+ FreePool (mGopModes);\r
+ continue;\r
+ }\r
+\r
+ break;\r
+ }\r
+\r
+ //\r
+ // Success -- so uninstall this callback. Closing the event removes all\r
+ // pending notifications and all protocol registrations.\r
+ //\r
+ Status = gBS->CloseEvent (mGopEvent);\r
+ ASSERT_EFI_ERROR (Status);\r
+ mGopEvent = NULL;\r
+ mGopTracker = NULL;\r
+}\r
+\r
+\r
/**\r
Entry point for this driver.\r
\r
goto UninstallProtocols;\r
}\r
\r
- Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,\r
- FORMID_MAIN_FORM);\r
+ Status = gBS->CreateEvent (EVT_NOTIFY_SIGNAL, TPL_CALLBACK, &GopInstalled,\r
+ NULL /* Context */, &mGopEvent);\r
if (EFI_ERROR (Status)) {\r
goto RemovePackages;\r
}\r
\r
+ Status = gBS->RegisterProtocolNotify (&gEfiGraphicsOutputProtocolGuid,\r
+ mGopEvent, &mGopTracker);\r
+ if (EFI_ERROR (Status)) {\r
+ goto CloseGopEvent;\r
+ }\r
+\r
+ //\r
+ // Check already installed GOPs.\r
+ //\r
+ Status = gBS->SignalEvent (mGopEvent);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
return EFI_SUCCESS;\r
\r
+CloseGopEvent:\r
+ gBS->CloseEvent (mGopEvent);\r
+\r
RemovePackages:\r
HiiRemovePackages (mInstalledPackages);\r
\r
IN EFI_HANDLE ImageHandle\r
)\r
{\r
+ if (mGopEvent == NULL) {\r
+ //\r
+ // The GOP callback ran successfully and unregistered itself. Release the\r
+ // resources allocated there.\r
+ //\r
+ ASSERT (mGopModes != NULL);\r
+ FreePool (mGopModes);\r
+ } else {\r
+ //\r
+ // Otherwise we need to unregister the callback.\r
+ //\r
+ ASSERT (mGopModes == NULL);\r
+ gBS->CloseEvent (mGopEvent);\r
+ }\r
+\r
+ //\r
+ // Release resources allocated by the entry point.\r
+ //\r
HiiRemovePackages (mInstalledPackages);\r
gBS->UninstallMultipleProtocolInterfaces (ImageHandle,\r
&gEfiDevicePathProtocolGuid, &mPkgDevicePath,\r