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OvmfPkg: PlatformDxe: get available resolutions from GOP 

Generate the options for the drop-down list from the GOP resolutions.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15372 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Laszlo Ersek 2014-03-22 07:13:50 +00:00 committed by jljusten
parent 9c08bbe59c
commit da07afaf59
2 changed files with 222 additions and 20 deletions
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240
OvmfPkg/PlatformDxe/Platform.c
View File

@ -18,9 +18,12 @@
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/HiiLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PrintLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiHiiServicesLib.h>
#include <Protocol/DevicePath.h>
#include <Protocol/GraphicsOutput.h>
#include <Protocol/HiiConfigAccess.h>
#include <Guid/MdeModuleHii.h>
#include <Guid/OvmfPlatformConfig.h>
@ -98,6 +101,29 @@ STATIC EFI_HII_HANDLE mInstalledPackages;
extern UINT8 PlatformDxeStrings[];
extern UINT8 PlatformFormsBin[];
//
// We want to be notified about GOP installations until we find one GOP
// interface that lets us populate the form.
//
STATIC EFI_EVENT mGopEvent;
//
// The registration record underneath this pointer allows us to iterate through
// the GOP instances one by one.
//
STATIC VOID *mGopTracker;
//
// Cache the resolutions we get from the GOP.
//
typedef struct {
UINT32 X;
UINT32 Y;
} GOP_MODE;
STATIC UINTN mNumGopModes;
STATIC GOP_MODE *mGopModes;
/**
This function is called by the HII machinery when it fetches the form state.
@ -179,6 +205,68 @@ Callback (
}
/**
Query and save all resolutions supported by the GOP.
@param[in] Gop The Graphics Output Protocol instance to query.
@param[out] NumGopModes The number of modes supported by the GOP. On output,
this parameter will be positive.
@param[out] GopModes On output, a dynamically allocated array containing
the resolutions returned by the GOP. The caller is
responsible for freeing the array after use.
@retval EFI_UNSUPPORTED No modes found.
@retval EFI_OUT_OF_RESOURCES Failed to allocate GopModes.
@return Error codes from Gop->QueryMode().
**/
STATIC
EFI_STATUS
EFIAPI
QueryGopModes (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop,
OUT UINTN *NumGopModes,
OUT GOP_MODE **GopModes
)
{
EFI_STATUS Status;
UINT32 ModeNumber;
if (Gop->Mode->MaxMode == 0) {
return EFI_UNSUPPORTED;
}
*NumGopModes = Gop->Mode->MaxMode;
*GopModes = AllocatePool (Gop->Mode->MaxMode * sizeof **GopModes);
if (*GopModes == NULL) {
return EFI_OUT_OF_RESOURCES;
}
for (ModeNumber = 0; ModeNumber < Gop->Mode->MaxMode; ++ModeNumber) {
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
UINTN SizeOfInfo;
Status = Gop->QueryMode (Gop, ModeNumber, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
goto FreeGopModes;
}
(*GopModes)[ModeNumber].X = Info->HorizontalResolution;
(*GopModes)[ModeNumber].Y = Info->VerticalResolution;
FreePool (Info);
}
return EFI_SUCCESS;
FreeGopModes:
FreePool (*GopModes);
return Status;
}
/**
Create a set of "one-of-many" (ie. "drop down list") option IFR opcodes,
based on available GOP resolutions, to be placed under a "one-of-many" (ie.
@ -193,6 +281,10 @@ Callback (
resolutions. The caller is responsible for freeing
OpCodeBuffer with HiiFreeOpCodeHandle() after use.
@param[in] NumGopModes Number of entries in GopModes.
@param[in] GopModes Array of resolutions retrieved from the GOP.
@retval EFI_SUCESS Opcodes have been successfully produced.
@return Status codes from underlying functions. PackageList may
@ -204,30 +296,39 @@ EFI_STATUS
EFIAPI
CreateResolutionOptions (
IN EFI_HII_HANDLE *PackageList,
OUT VOID **OpCodeBuffer
OUT VOID **OpCodeBuffer,
IN UINTN NumGopModes,
IN GOP_MODE *GopModes
)
{
EFI_STATUS Status;
VOID *OutputBuffer;
EFI_STRING_ID NewString;
VOID *OpCode;
EFI_STATUS Status;
VOID *OutputBuffer;
UINTN ModeNumber;
OutputBuffer = HiiAllocateOpCodeHandle ();
if (OutputBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
NewString = HiiSetString (PackageList, 0 /* new string */, L"800x600",
NULL /* for all languages */);
if (NewString == 0) {
Status = EFI_OUT_OF_RESOURCES;
goto FreeOutputBuffer;
}
OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,
0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, 0 /* Value */);
if (OpCode == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto FreeOutputBuffer;
for (ModeNumber = 0; ModeNumber < NumGopModes; ++ModeNumber) {
CHAR16 Desc[MAXSIZE_RES_CUR];
EFI_STRING_ID NewString;
VOID *OpCode;
UnicodeSPrintAsciiFormat (Desc, sizeof Desc, "%Ldx%Ld",
(INT64) GopModes[ModeNumber].X, (INT64) GopModes[ModeNumber].Y);
NewString = HiiSetString (PackageList, 0 /* new string */, Desc,
NULL /* for all languages */);
if (NewString == 0) {
Status = EFI_OUT_OF_RESOURCES;
goto FreeOutputBuffer;
}
OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,
0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, ModeNumber);
if (OpCode == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto FreeOutputBuffer;
}
}
*OpCodeBuffer = OutputBuffer;
@ -244,6 +345,9 @@ FreeOutputBuffer:
Populate the form identified by the (PackageList, FormSetGuid, FormId)
triplet.
The drop down list of video resolutions is generated from (NumGopModes,
GopModes).
@retval EFI_SUCESS Form successfully updated.
@return Status codes from underlying functions.
@ -254,7 +358,9 @@ EFIAPI
PopulateForm (
IN EFI_HII_HANDLE *PackageList,
IN EFI_GUID *FormSetGuid,
IN EFI_FORM_ID FormId
IN EFI_FORM_ID FormId,
IN UINTN NumGopModes,
IN GOP_MODE *GopModes
)
{
EFI_STATUS Status;
@ -293,7 +399,8 @@ PopulateForm (
//
// 3.1. Get a list of resolutions.
//
Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2);
Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2,
NumGopModes, GopModes);
if (EFI_ERROR (Status)) {
goto FreeOpCodeBuffer;
}
@ -381,6 +488,66 @@ ExecutePlatformConfig (
}
/**
Notification callback for GOP interface installation.
@param[in] Event Event whose notification function is being invoked.
@param[in] Context The pointer to the notification function's context, which
is implementation-dependent.
**/
STATIC
VOID
EFIAPI
GopInstalled (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop;
ASSERT (Event == mGopEvent);
//
// Check further GOPs.
//
for (;;) {
mNumGopModes = 0;
mGopModes = NULL;
Status = gBS->LocateProtocol (&gEfiGraphicsOutputProtocolGuid, mGopTracker,
(VOID **) &Gop);
if (EFI_ERROR (Status)) {
return;
}
Status = QueryGopModes (Gop, &mNumGopModes, &mGopModes);
if (EFI_ERROR (Status)) {
continue;
}
Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,
FORMID_MAIN_FORM, mNumGopModes, mGopModes);
if (EFI_ERROR (Status)) {
FreePool (mGopModes);
continue;
}
break;
}
//
// Success -- so uninstall this callback. Closing the event removes all
// pending notifications and all protocol registrations.
//
Status = gBS->CloseEvent (mGopEvent);
ASSERT_EFI_ERROR (Status);
mGopEvent = NULL;
mGopTracker = NULL;
}
/**
Entry point for this driver.
@ -433,14 +600,29 @@ PlatformInit (
goto UninstallProtocols;
}
Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,
FORMID_MAIN_FORM);
Status = gBS->CreateEvent (EVT_NOTIFY_SIGNAL, TPL_CALLBACK, &GopInstalled,
NULL /* Context */, &mGopEvent);
if (EFI_ERROR (Status)) {
goto RemovePackages;
}
Status = gBS->RegisterProtocolNotify (&gEfiGraphicsOutputProtocolGuid,
mGopEvent, &mGopTracker);
if (EFI_ERROR (Status)) {
goto CloseGopEvent;
}
//
// Check already installed GOPs.
//
Status = gBS->SignalEvent (mGopEvent);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
CloseGopEvent:
gBS->CloseEvent (mGopEvent);
RemovePackages:
HiiRemovePackages (mInstalledPackages);
@ -465,6 +647,24 @@ PlatformUnload (
IN EFI_HANDLE ImageHandle
)
{
if (mGopEvent == NULL) {
//
// The GOP callback ran successfully and unregistered itself. Release the
// resources allocated there.
//
ASSERT (mGopModes != NULL);
FreePool (mGopModes);
} else {
//
// Otherwise we need to unregister the callback.
//
ASSERT (mGopModes == NULL);
gBS->CloseEvent (mGopEvent);
}
//
// Release resources allocated by the entry point.
//
HiiRemovePackages (mInstalledPackages);
gBS->UninstallMultipleProtocolInterfaces (ImageHandle,
&gEfiDevicePathProtocolGuid, &mPkgDevicePath,

2
OvmfPkg/PlatformDxe/Platform.inf
View File

@ -42,6 +42,7 @@
DevicePathLib
HiiLib
MemoryAllocationLib
PrintLib
UefiBootServicesTableLib
UefiHiiServicesLib
UefiLib
@ -54,6 +55,7 @@
[Protocols]
gEfiDevicePathProtocolGuid ## PRODUCES
gEfiGraphicsOutputProtocolGuid ## CONSUMES
gEfiHiiConfigAccessProtocolGuid ## PRODUCES
[Guids]