diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-03-01 04:47:53 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-03-01 04:47:53 +0000 |
| commit | 0d92cdc2003f5477412e86d9ec081480030c559f (patch) | |
| tree | cf3438ecdb9c7d4cfe504c304c089de681c31cba /DuetPkg | |
| parent | fd677afe31b48284822a9c12ac3820fdc32af6a4 (diff) | |
| download | edk2-0d92cdc2003f5477412e86d9ec081480030c559f.zip edk2-0d92cdc2003f5477412e86d9ec081480030c559f.tar.gz edk2-0d92cdc2003f5477412e86d9ec081480030c559f.tar.bz2 | |
Update BiosVideo driver to produce GOP protocol but not UgaDraw protocol which is retired from UEFI specification.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7737 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'DuetPkg')
| -rw-r--r-- | DuetPkg/BiosVideoThunkDxe/BiosVideo.c | 1990 | ||||
| -rw-r--r-- | DuetPkg/BiosVideoThunkDxe/BiosVideo.h | 363 | ||||
| -rw-r--r-- | DuetPkg/BiosVideoThunkDxe/BiosVideo.inf | 6 | ||||
| -rw-r--r-- | DuetPkg/BiosVideoThunkDxe/LegacyBiosThunk.c | 224 |
4 files changed, 1614 insertions, 969 deletions
diff --git a/DuetPkg/BiosVideoThunkDxe/BiosVideo.c b/DuetPkg/BiosVideoThunkDxe/BiosVideo.c index 8c5957c..0d8b0c6 100644 --- a/DuetPkg/BiosVideoThunkDxe/BiosVideo.c +++ b/DuetPkg/BiosVideoThunkDxe/BiosVideo.c @@ -12,7 +12,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. Module Name:
BiosVideo.c
-
+
Abstract:
ConsoleOut Routines that speak VGA.
@@ -23,7 +23,6 @@ Revision History #include "BiosVideo.h"
-
//
// EFI Driver Binding Protocol Instance
//
@@ -45,13 +44,7 @@ UINT8 mVgaRightMaskTable[] = { 0x80, 0xc0, 0xe0, 0xf0, 0x UINT8 mVgaBitMaskTable[] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
-THUNK_CONTEXT mThunkContext;
-
-EFI_LEGACY_8259_PROTOCOL *mLegacy8259 = NULL;
-
-#define EFI_CPU_EFLAGS_IF 0x200
-
-EFI_UGA_PIXEL mVgaColorToUgaColor[] = {
+EFI_GRAPHICS_OUTPUT_BLT_PIXEL mVgaColorToGraphicsOutputColor[] = {
{
0x00,
0x00,
@@ -150,23 +143,63 @@ EFI_UGA_PIXEL mVgaColorToUgaColor[] = { }
};
+//
+// Standard timing defined by VESA EDID
+//
+VESA_BIOS_EXTENSIONS_EDID_TIMING mEstablishedEdidTiming[] = {
+ //
+ // Established Timing I
+ //
+ {800, 600, 60},
+ {800, 600, 56},
+ {640, 480, 75},
+ {640, 480, 72},
+ {640, 480, 67},
+ {640, 480, 60},
+ {720, 400, 88},
+ {720, 400, 70},
+ //
+ // Established Timing II
+ //
+ {1280, 1024, 75},
+ {1024, 768, 75},
+ {1024, 768, 70},
+ {1024, 768, 60},
+ {1024, 768, 87},
+ {832, 624, 75},
+ {800, 600, 75},
+ {800, 600, 72},
+ //
+ // Established Timing III
+ //
+ {1152, 870, 75}
+};
+
+EFI_STATUS
+BiosVideoChildHandleInstall (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ParentHandle,
+ IN EFI_PCI_IO_PROTOCOL *ParentPciIo,
+ IN EFI_LEGACY_8259_PROTOCOL *ParentLegacy8259,
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+;
+
+EFI_STATUS
+BiosVideoChildHandleUninstall (
+ EFI_DRIVER_BINDING_PROTOCOL *This,
+ EFI_HANDLE Controller,
+ EFI_HANDLE Handle
+ )
+;
+
VOID
-InitializeBiosIntCaller (
- VOID
- );
-
-VOID
-InitializeInterruptRedirection (
- VOID
- );
-
-BOOLEAN
-EFIAPI
-LegacyBiosInt86 (
- IN UINT8 BiosInt,
- IN EFI_IA32_REGISTER_SET *Regs
- );
-
+BiosVideoDeviceReleaseResource (
+ BIOS_VIDEO_DEV *BiosVideoPrivate
+ )
+;
+
EFI_STATUS
EFIAPI
BiosVideoDriverEntryPoint (
@@ -174,20 +207,20 @@ BiosVideoDriverEntryPoint ( IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
-
+
Routine Description:
-
+
Driver Entry Point.
-
+
Arguments:
-
+
ImageHandle - Handle of driver image.
SystemTable - Pointer to system table.
-
+
Returns:
-
+
EFI_STATUS
-
+
--*/
{
EFI_STATUS Status;
@@ -200,7 +233,7 @@ BiosVideoDriverEntryPoint ( &gBiosVideoComponentName,
&gBiosVideoComponentName2
);
-
+
return Status;
}
@@ -258,38 +291,37 @@ BiosVideoDriverBindingSupported ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
-
+
Routine Description:
Supported.
-
+
Arguments:
This - Pointer to driver binding protocol
Controller - Controller handle to connect
RemainingDevicePath - A pointer to the remaining portion of a device path
-
-
+
+
Returns:
EFI_STATUS - EFI_SUCCESS:This controller can be managed by this driver,
Otherwise, this controller cannot be managed by this driver
-
+
--*/
{
- EFI_STATUS Status;
- EFI_LEGACY_8259_PROTOCOL *Legacy8259;
- EFI_PCI_IO_PROTOCOL *PciIo;
-
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingSupported\n"));
+ EFI_STATUS Status;
+ EFI_LEGACY_8259_PROTOCOL *LegacyBios;
+ EFI_PCI_IO_PROTOCOL *PciIo;
//
- // See if the Legacy BIOS Protocol is available
+ // See if the Legacy 8259 Protocol is available
//
- Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **) &Legacy8259);
+ Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **) &LegacyBios);
if (EFI_ERROR (Status)) {
return Status;
}
+
//
// Open the IO Abstraction(s) needed to perform the supported test
//
@@ -302,21 +334,19 @@ BiosVideoDriverBindingSupported ( EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingSupported: Fail to open PciIo protocol!\n"));
return Status;
}
-
+
if (!BiosVideoIsVga (PciIo)) {
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingSupported: Is not VGA!\n"));
Status = EFI_UNSUPPORTED;
}
gBS->CloseProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
return Status;
}
@@ -329,97 +359,217 @@ BiosVideoDriverBindingStart ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
-
+
Routine Description:
- Install UGA Draw Protocol onto VGA device handles
-
+ Install Graphics Output Protocol onto VGA device handles
+
Arguments:
This - Pointer to driver binding protocol
Controller - Controller handle to connect
RemainingDevicePath - A pointer to the remaining portion of a device path
-
+
Returns:
EFI_STATUS
-
+
--*/
{
- EFI_STATUS Status;
- BIOS_VIDEO_DEV *BiosVideoPrivate;
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ EFI_LEGACY_8259_PROTOCOL *Legacy8259;
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingStart\n"));
+ PciIo = NULL;
//
- // Initialize local variables
+ // Prepare for status code
//
- BiosVideoPrivate = NULL;
+ Status = gBS->HandleProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ (VOID **) &ParentDevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
//
- // Allocate the private device structure
+ // Open the IO Abstraction(s) needed
//
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- sizeof (BIOS_VIDEO_DEV),
- (VOID**)&BiosVideoPrivate
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
goto Done;
}
- ZeroMem (BiosVideoPrivate, sizeof (BIOS_VIDEO_DEV));
-
//
// See if the Legacy BIOS Protocol is available
//
- Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **) &mLegacy8259);
+ Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **) &Legacy8259);
if (EFI_ERROR (Status)) {
goto Done;
}
-
+
+
//
- // Prepare for status code
+ // Create child handle and install GraphicsOutputProtocol on it
//
- Status = gBS->HandleProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- (VOID**)&BiosVideoPrivate->DevicePath
- );
+ Status = BiosVideoChildHandleInstall (
+ This,
+ Controller,
+ PciIo,
+ Legacy8259,
+ ParentDevicePath,
+ RemainingDevicePath
+ );
+
+Done:
if (EFI_ERROR (Status)) {
- goto Done;
+ if (PciIo != NULL) {
+ //
+ // Release PCI I/O Protocols on the controller handle.
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ }
+ }
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+BiosVideoDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+/*++
+
+ Routine Description:
+
+ Stop.
+
+ Arguments:
+
+ This - Pointer to driver binding protocol
+ Controller - Controller handle to connect
+ NumberOfChilren - Number of children handle created by this driver
+ ChildHandleBuffer - Buffer containing child handle created
+
+ Returns:
+
+ EFI_SUCCESS - Driver disconnected successfully from controller
+ EFI_UNSUPPORTED - Cannot find BIOS_VIDEO_DEV structure
+
+--*/
+{
+ EFI_STATUS Status;
+ BIOS_VIDEO_DEV *BiosVideoPrivate;
+ BOOLEAN AllChildrenStopped;
+ UINTN Index;
+
+ BiosVideoPrivate = NULL;
+
+ if (NumberOfChildren == 0) {
+ //
+ // Close PCI I/O protocol on the controller handle
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ return EFI_SUCCESS;
+ }
+
+ AllChildrenStopped = TRUE;
+ for (Index = 0; Index < NumberOfChildren; Index++) {
+ Status = BiosVideoChildHandleUninstall (This, Controller, ChildHandleBuffer[Index]);
+
+ if (EFI_ERROR (Status)) {
+ AllChildrenStopped = FALSE;
+ }
+ }
+
+ if (!AllChildrenStopped) {
+ return EFI_DEVICE_ERROR;
}
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+BiosVideoChildHandleInstall (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ParentHandle,
+ IN EFI_PCI_IO_PROTOCOL *ParentPciIo,
+ IN EFI_LEGACY_8259_PROTOCOL *ParentLegacy8259,
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+ Install child handles if the Handle supports MBR format.
+
+Arguments:
+ This - Calling context.
+ Handle - Parent Handle
+ PciIo - Parent PciIo interface
+ LegacyBios - Parent LegacyBios interface
+ DevicePath - Parent Device Path
+
+Returns:
+ EFI_SUCCESS - If a child handle was added
+ other - A child handle was not added
+
+--*/
+{
+ EFI_STATUS Status;
+ BIOS_VIDEO_DEV *BiosVideoPrivate;
+ ACPI_ADR_DEVICE_PATH AcpiDeviceNode;
+
//
- // Open the IO Abstraction(s) needed
+ // Allocate the private device structure for video device
//
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- (VOID **) &(BiosVideoPrivate->PciIo),
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (BIOS_VIDEO_DEV),
+ &BiosVideoPrivate
);
if (EFI_ERROR (Status)) {
goto Done;
}
-
- DEBUG ((EFI_D_INFO, "InitializeBiosIntCaller\n"));
- InitializeBiosIntCaller();
- InitializeInterruptRedirection();
- DEBUG ((EFI_D_INFO, "InitializeBiosIntCaller Finished!\n"));
-
- if (!BiosVideoIsVga (BiosVideoPrivate->PciIo)) {
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingStart: not VGA\n"));
+
+ ZeroMem (BiosVideoPrivate, sizeof (BIOS_VIDEO_DEV));
+
+ if (!BiosVideoIsVga (ParentPciIo)) {
Status = EFI_UNSUPPORTED;
goto Done;
}
- BiosVideoPrivate->VgaCompatible = TRUE;
+ BiosVideoPrivate->VgaCompatible = TRUE;
+
//
- // Initialize the private device structure
+ // Initialize the child private structure
//
BiosVideoPrivate->Signature = BIOS_VIDEO_DEV_SIGNATURE;
- BiosVideoPrivate->Handle = Controller;
+ BiosVideoPrivate->Handle = NULL;
/**
Status = gBS->CreateEvent (
@@ -435,11 +585,9 @@ BiosVideoDriverBindingStart ( **/
//
- // Fill in UGA Draw specific mode structures
+ // Fill in Graphics Output specific mode structures
//
BiosVideoPrivate->HardwareNeedsStarting = TRUE;
- BiosVideoPrivate->CurrentMode = 0;
- BiosVideoPrivate->MaxMode = 0;
BiosVideoPrivate->ModeData = NULL;
BiosVideoPrivate->LineBuffer = NULL;
BiosVideoPrivate->VgaFrameBuffer = NULL;
@@ -457,22 +605,30 @@ BiosVideoDriverBindingStart ( BiosVideoPrivate->VgaMiniPort.CrtcDataRegisterBar = EFI_PCI_IO_PASS_THROUGH_BAR;
//
- // Assume that UGA Draw will be produced until proven otherwise
+ // Assume that Graphics Output Protocol will be produced until proven otherwise
+ //
+ BiosVideoPrivate->ProduceGraphicsOutput = TRUE;
+
+ //
+ // Child handle need to consume the Legacy Bios protocol
//
- BiosVideoPrivate->ProduceUgaDraw = TRUE;
+ BiosVideoPrivate->Legacy8259 = ParentLegacy8259;
//
- // Check for VESA BIOS Extensions for modes that are compatible with UGA Draw
+ // When check for VBE, PCI I/O protocol is needed, so use parent's protocol interface temporally
+ //
+ BiosVideoPrivate->PciIo = ParentPciIo;
+
+ InitializeBiosIntCaller(BiosVideoPrivate);
+ InitializeInterruptRedirection(BiosVideoPrivate);
+
+ //
+ // Check for VESA BIOS Extensions for modes that are compatible with Graphics Output
//
- //CpuDeadLoop();
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingStart: Before check VBE!\n"));
Status = BiosVideoCheckForVbe (BiosVideoPrivate);
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingStart: check VBE status=%r!\n", Status));
-
if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingStart: Fail to check VBE!\n"));
//
- // The VESA BIOS Extensions are not compatible with UGA Draw, so check for support
+ // The VESA BIOS Extensions are not compatible with Graphics Output, so check for support
// for the standard 640x480 16 color VGA mode
//
if (BiosVideoPrivate->VgaCompatible) {
@@ -482,9 +638,9 @@ BiosVideoDriverBindingStart ( if (EFI_ERROR (Status)) {
//
// Neither VBE nor the standard 640x480 16 color VGA mode are supported, so do
- // not produce the UGA Draw protocol. Instead, produce the VGA MiniPort Protocol.
+ // not produce the Graphics Output protocol. Instead, produce the VGA MiniPort Protocol.
//
- BiosVideoPrivate->ProduceUgaDraw = FALSE;
+ BiosVideoPrivate->ProduceGraphicsOutput = FALSE;
//
// INT services are available, so on the 80x25 and 80x50 text mode are supported
@@ -493,23 +649,60 @@ BiosVideoDriverBindingStart ( }
}
- if (BiosVideoPrivate->ProduceUgaDraw) {
- DEBUG ((EFI_D_INFO, "BiosVideoDriverBindingStart: Produce Uga Draw!\n"));
+ if (BiosVideoPrivate->ProduceGraphicsOutput) {
+ if (RemainingDevicePath == NULL) {
+ ZeroMem (&AcpiDeviceNode, sizeof (ACPI_ADR_DEVICE_PATH));
+ AcpiDeviceNode.Header.Type = ACPI_DEVICE_PATH;
+ AcpiDeviceNode.Header.SubType = ACPI_ADR_DP;
+ AcpiDeviceNode.ADR = ACPI_DISPLAY_ADR (1, 0, 0, 1, 0, ACPI_ADR_DISPLAY_TYPE_VGA, 0, 0);
+ SetDevicePathNodeLength (&AcpiDeviceNode.Header, sizeof (ACPI_ADR_DEVICE_PATH));
+
+ BiosVideoPrivate->DevicePath = AppendDevicePathNode (
+ ParentDevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *) &AcpiDeviceNode
+ );
+ } else {
+ BiosVideoPrivate->DevicePath = AppendDevicePathNode (ParentDevicePath, RemainingDevicePath);
+ }
+
//
- // Install UGA Draw Protocol
+ // Creat child handle and install Graphics Output Protocol,EDID Discovered/Active Protocol
//
Status = gBS->InstallMultipleProtocolInterfaces (
- &Controller,
- &gEfiUgaDrawProtocolGuid,
- &BiosVideoPrivate->UgaDraw,
+ &BiosVideoPrivate->Handle,
+ &gEfiDevicePathProtocolGuid,
+ BiosVideoPrivate->DevicePath,
+ &gEfiGraphicsOutputProtocolGuid,
+ &BiosVideoPrivate->GraphicsOutput,
+ &gEfiEdidDiscoveredProtocolGuid,
+ &BiosVideoPrivate->EdidDiscovered,
+ &gEfiEdidActiveProtocolGuid,
+ &BiosVideoPrivate->EdidActive,
NULL
);
+
+ if (!EFI_ERROR (Status)) {
+ //
+ // Open the Parent Handle for the child
+ //
+ Status = gBS->OpenProtocol (
+ ParentHandle,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &BiosVideoPrivate->PciIo,
+ This->DriverBindingHandle,
+ BiosVideoPrivate->Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ }
} else {
//
// Install VGA Mini Port Protocol
//
Status = gBS->InstallMultipleProtocolInterfaces (
- &Controller,
+ &BiosVideoPrivate->Handle,
&gEfiVgaMiniPortProtocolGuid,
&BiosVideoPrivate->VgaMiniPort,
NULL
@@ -518,101 +711,66 @@ BiosVideoDriverBindingStart ( Done:
if (EFI_ERROR (Status)) {
- if (BiosVideoPrivate != NULL) {
- //
- // Free mode data
- //
- if (BiosVideoPrivate->ModeData != NULL) {
- gBS->FreePool (BiosVideoPrivate->ModeData);
- }
- //
- // Free memory allocated below 1MB
- //
- if (BiosVideoPrivate->PagesBelow1MB != 0) {
- gBS->FreePages (BiosVideoPrivate->PagesBelow1MB, BiosVideoPrivate->NumberOfPagesBelow1MB);
- }
-
- if (BiosVideoPrivate->PciIo != NULL) {
- //
- // Release PCI I/O and UGA Draw Protocols on the controller handle.
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
- }
- //
- // Close the ExitBootServices event
- //
- if (BiosVideoPrivate->ExitBootServicesEvent != NULL) {
- gBS->CloseEvent (BiosVideoPrivate->ExitBootServicesEvent);
- }
- //
- // Free private data structure
- //
- gBS->FreePool (BiosVideoPrivate);
- }
+ //
+ // Free private data structure
+ //
+ BiosVideoDeviceReleaseResource (BiosVideoPrivate);
}
return Status;
}
EFI_STATUS
-EFIAPI
-BiosVideoDriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
+BiosVideoChildHandleUninstall (
+ EFI_DRIVER_BINDING_PROTOCOL *This,
+ EFI_HANDLE Controller,
+ EFI_HANDLE Handle
)
/*++
-
- Routine Description:
- Stop.
-
- Arguments:
+Routine Description:
- This - Pointer to driver binding protocol
- Controller - Controller handle to connect
- NumberOfChilren - Number of children handle created by this driver
- ChildHandleBuffer - Buffer containing child handle created
-
- Returns:
+ Deregister an video child handle and free resources
+
+Arguments:
+
+ This - Protocol instance pointer.
+ Controller - Video controller handle
+ Handle - Video child handle
+
+Returns:
+
+ EFI_STATUS
- EFI_SUCCESS - Driver disconnected successfully from controller
- EFI_UNSUPPORTED - Cannot find BIOS_VIDEO_DEV structure
-
--*/
{
- EFI_STATUS Status;
- EFI_UGA_DRAW_PROTOCOL *Uga;
- EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;
- BIOS_VIDEO_DEV *BiosVideoPrivate;
- EFI_IA32_REGISTER_SET Regs;
+ EFI_STATUS Status;
+ EFI_IA32_REGISTER_SET Regs;
+ EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
+ EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;
+ BIOS_VIDEO_DEV *BiosVideoPrivate;
+ EFI_PCI_IO_PROTOCOL *PciIo;
BiosVideoPrivate = NULL;
Status = gBS->OpenProtocol (
- Controller,
- &gEfiUgaDrawProtocolGuid,
- (VOID **) &Uga,
+ Handle,
+ &gEfiGraphicsOutputProtocolGuid,
+ (VOID **) &GraphicsOutput,
This->DriverBindingHandle,
- Controller,
+ Handle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
- BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS (Uga);
+ BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (GraphicsOutput);
}
Status = gBS->OpenProtocol (
- Controller,
+ Handle,
&gEfiVgaMiniPortProtocolGuid,
(VOID **) &VgaMiniPort,
This->DriverBindingHandle,
- Controller,
+ Handle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
@@ -623,43 +781,105 @@ BiosVideoDriverBindingStop ( return EFI_UNSUPPORTED;
}
- if (BiosVideoPrivate->ProduceUgaDraw) {
+ //
+ // Close PCI I/O protocol that opened by child handle
+ //
+ Status = gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Handle
+ );
+
+ //
+ // Uninstall protocols on child handle
+ //
+ if (BiosVideoPrivate->ProduceGraphicsOutput) {
Status = gBS->UninstallMultipleProtocolInterfaces (
- Controller,
- &gEfiUgaDrawProtocolGuid,
- &BiosVideoPrivate->UgaDraw,
+ BiosVideoPrivate->Handle,
+ &gEfiDevicePathProtocolGuid,
+ BiosVideoPrivate->DevicePath,
+ &gEfiGraphicsOutputProtocolGuid,
+ &BiosVideoPrivate->GraphicsOutput,
+ &gEfiEdidDiscoveredProtocolGuid,
+ &BiosVideoPrivate->EdidDiscovered,
+ &gEfiEdidActiveProtocolGuid,
+ &BiosVideoPrivate->EdidActive,
NULL
);
} else {
Status = gBS->UninstallMultipleProtocolInterfaces (
- Controller,
+ BiosVideoPrivate->Handle,
&gEfiVgaMiniPortProtocolGuid,
&BiosVideoPrivate->VgaMiniPort,
NULL
);
}
-
if (EFI_ERROR (Status)) {
+ gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
return Status;
}
-
- gBS->SetMem (&Regs, sizeof (Regs), 0);
-
+
+ gBS->SetMem (&Regs, sizeof (Regs), 0);
+
//
// Set the 80x25 Text VGA Mode
//
Regs.H.AH = 0x00;
Regs.H.AL = 0x03;
- LegacyBiosInt86 (0x10, &Regs);
-
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
Regs.H.AH = 0x11;
Regs.H.AL = 0x14;
Regs.H.BL = 0;
- LegacyBiosInt86 (0x10, &Regs);
-
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
//
// Do not disable IO/memory decode since that would prevent legacy ROM from working
//
+
+ //
+ // Release all allocated resources
+ //
+ BiosVideoDeviceReleaseResource (BiosVideoPrivate);
+
+ return EFI_SUCCESS;
+}
+
+VOID
+BiosVideoDeviceReleaseResource (
+ BIOS_VIDEO_DEV *BiosVideoPrivate
+ )
+/*++
+Routing Description:
+
+ Release resources of an video child device before stopping it.
+
+Arguments:
+
+ BiosVideoPrivate - Video child device private data structure
+
+Returns:
+
+ NONE
+
+---*/
+{
+ if (BiosVideoPrivate == NULL) {
+ return ;
+ }
+
+ //
+ // Release all the resourses occupied by the BIOS_VIDEO_DEV
+ //
+
//
// Free VGA Frame Buffer
//
@@ -695,26 +915,220 @@ BiosVideoDriverBindingStop ( gBS->FreePages (BiosVideoPrivate->VbeSaveRestoreBuffer, BiosVideoPrivate->VbeSaveRestorePages);
}
//
- // Release PCI I/O and UGA Draw Protocols on the controller handle.
+ // Free graphics output protocol occupied resource
//
- gBS->CloseProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
+ if (BiosVideoPrivate->GraphicsOutput.Mode != NULL) {
+ if (BiosVideoPrivate->GraphicsOutput.Mode->Info != NULL) {
+ gBS->FreePool (BiosVideoPrivate->GraphicsOutput.Mode->Info);
+ }
+ gBS->FreePool (BiosVideoPrivate->GraphicsOutput.Mode);
+ }
+ //
+ // Free EDID discovered protocol occupied resource
+ //
+ if (BiosVideoPrivate->EdidDiscovered.Edid != NULL) {
+ gBS->FreePool (BiosVideoPrivate->EdidDiscovered.Edid);
+ }
+ //
+ // Free EDID active protocol occupied resource
+ //
+ if (BiosVideoPrivate->EdidActive.Edid != NULL) {
+ gBS->FreePool (BiosVideoPrivate->EdidActive.Edid);
+ }
+
+ if (BiosVideoPrivate->DevicePath!= NULL) {
+ gBS->FreePool (BiosVideoPrivate->DevicePath);
+ }
//
// Close the ExitBootServices event
//
- gBS->CloseEvent (BiosVideoPrivate->ExitBootServicesEvent);
+ if (BiosVideoPrivate->ExitBootServicesEvent != NULL) {
+ gBS->CloseEvent (BiosVideoPrivate->ExitBootServicesEvent);
+ }
+
+ gBS->FreePool (BiosVideoPrivate);
+
+ return ;
+}
+
+STATIC
+UINT32
+CalculateEdidKey (
+ VESA_BIOS_EXTENSIONS_EDID_TIMING *EdidTiming
+ )
+/*++
+
+ Routine Description:
+
+ Generate a search key for a specified timing data.
+
+ Arguments:
+
+ EdidTiming - Pointer to EDID timing
+
+ Returns:
+ The 32 bit unique key for search.
+
+--*/
+{
+ UINT32 Key;
//
- // Free private data structure
+ // Be sure no conflicts for all standard timing defined by VESA.
//
- gBS->FreePool (BiosVideoPrivate);
+ Key = (EdidTiming->HorizontalResolution * 2) + EdidTiming->VerticalResolution;
+ return Key;
+}
- return EFI_SUCCESS;
+STATIC
+BOOLEAN
+ParseEdidData (
+ UINT8 *EdidBuffer,
+ VESA_BIOS_EXTENSIONS_VALID_EDID_TIMING *ValidEdidTiming
+ )
+/*++
+
+ Routine Description:
+
+ Parse the Established Timing and Standard Timing in EDID data block.
+
+ Arguments:
+
+ EdidBuffer - Pointer to EDID data block
+ ValidEdidTiming - Valid EDID timing information
+
+ Returns:
+ TRUE - The EDID data is valid.
+ FALSE - The EDID data is invalid.
+
+--*/
+{
+ UINT8 CheckSum;
+ UINT32 Index;
+ UINT32 ValidNumber;
+ UINT32 TimingBits;
+ UINT8 *BufferIndex;
+ UINT16 HorizontalResolution;
+ UINT16 VerticalResolution;
+ UINT8 AspectRatio;
+ UINT8 RefreshRate;
+ VESA_BIOS_EXTENSIONS_EDID_TIMING TempTiming;
+ VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK *EdidDataBlock;
+
+ EdidDataBlock = (VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK *) EdidBuffer;
+
+ //
+ // Check the checksum of EDID data
+ //
+ CheckSum = 0;
+ for (Index = 0; Index < VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE; Index ++) {
+ CheckSum = CheckSum + EdidBuffer[Index];
+ }
+ if (CheckSum != 0) {
+ return FALSE;
+ }
+
+ ValidNumber = 0;
+ gBS->SetMem (ValidEdidTiming, sizeof (VESA_BIOS_EXTENSIONS_VALID_EDID_TIMING), 0);
+
+ if ((EdidDataBlock->EstablishedTimings[0] != 0) ||
+ (EdidDataBlock->EstablishedTimings[1] != 0) ||
+ (EdidDataBlock->EstablishedTimings[2] != 0)
+ ) {
+ //
+ // Established timing data
+ //
+ TimingBits = EdidDataBlock->EstablishedTimings[0] |
+ (EdidDataBlock->EstablishedTimings[1] << 8) |
+ ((EdidDataBlock->EstablishedTimings[2] & 0x80) << 9) ;
+ for (Index = 0; Index < VESA_BIOS_EXTENSIONS_EDID_ESTABLISHED_TIMING_MAX_NUMBER; Index ++) {
+ if (TimingBits & 0x1) {
+ ValidEdidTiming->Key[ValidNumber] = CalculateEdidKey (&mEstablishedEdidTiming[Index]);
+ ValidNumber ++;
+ }
+ TimingBits = TimingBits >> 1;
+ }
+ } else {
+ //
+ // If no Established timing data, read the standard timing data
+ //
+ BufferIndex = &EdidDataBlock->StandardTimingIdentification[0];
+ for (Index = 0; Index < 8; Index ++) {
+ if ((BufferIndex[0] != 0x1) && (BufferIndex[1] != 0x1)){
+ //
+ // A valid Standard Timing
+ //
+ HorizontalResolution = BufferIndex[0] * 8 + 248;
+ AspectRatio = BufferIndex[1] >> 6;
+ switch (AspectRatio) {
+ case 0:
+ VerticalResolution = HorizontalResolution / 16 * 10;
+ break;
+ case 1:
+ VerticalResolution = HorizontalResolution / 4 * 3;
+ break;
+ case 2:
+ VerticalResolution = HorizontalResolution / 5 * 4;
+ break;
+ case 3:
+ VerticalResolution = HorizontalResolution / 16 * 9;
+ break;
+ default:
+ VerticalResolution = HorizontalResolution / 4 * 3;
+ break;
+ }
+ RefreshRate = (BufferIndex[1] & 0x1f) + 60;
+ TempTiming.HorizontalResolution = HorizontalResolution;
+ TempTiming.VerticalResolution = VerticalResolution;
+ TempTiming.RefreshRate = RefreshRate;
+ ValidEdidTiming->Key[ValidNumber] = CalculateEdidKey (&TempTiming);
+ ValidNumber ++;
+ }
+ BufferIndex += 2;
+ }
+ }
+
+ ValidEdidTiming->ValidNumber = ValidNumber;
+ return TRUE;
+}
+
+STATIC
+BOOLEAN
+SearchEdidTiming (
+ VESA_BIOS_EXTENSIONS_VALID_EDID_TIMING *ValidEdidTiming,
+ VESA_BIOS_EXTENSIONS_EDID_TIMING *EdidTiming
+ )
+/*++
+
+ Routine Description:
+
+ Search a specified Timing in all the valid EDID timings.
+
+ Arguments:
+
+ ValidEdidTiming - All valid EDID timing information.
+ EdidTiming - The Timing to search for.
+
+ Returns:
+
+ TRUE - Found.
+ FALSE - Not found.
+
+--*/
+{
+ UINT32 Index;
+ UINT32 Key;
+
+ Key = CalculateEdidKey (EdidTiming);
+
+ for (Index = 0; Index < ValidEdidTiming->ValidNumber; Index ++) {
+ if (Key == ValidEdidTiming->Key[Index]) {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
}
#define PCI_DEVICE_ENABLED (EFI_PCI_COMMAND_IO_SPACE | EFI_PCI_COMMAND_MEMORY_SPACE)
@@ -769,37 +1183,46 @@ BiosVideoIsVga ( EFI_STATUS
+EFIAPI
BiosVideoCheckForVbe (
- IN OUT BIOS_VIDEO_DEV *BiosVideoPrivate
+ IN OUT BIOS_VIDEO_DEV *BiosVideoPrivate
)
/*++
-
+
Routine Description:
- Check for VBE device
-
+ Check for VBE device
+
Arguments:
-
+
BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure
-
+
Returns:
-
+
EFI_SUCCESS - VBE device found
-
+
--*/
{
- EFI_STATUS Status;
- EFI_IA32_REGISTER_SET Regs;
- UINT16 *ModeNumberPtr;
- BOOLEAN ModeFound;
- BIOS_VIDEO_MODE_DATA *ModeBuffer;
- UINTN Index;
+ EFI_STATUS Status;
+ EFI_IA32_REGISTER_SET Regs;
+ UINT16 *ModeNumberPtr;
+ BOOLEAN ModeFound;
+ BOOLEAN EdidFound;
+ BIOS_VIDEO_MODE_DATA *ModeBuffer;
+ BIOS_VIDEO_MODE_DATA *CurrentModeData;
+ UINTN PreferMode;
+ UINTN ModeNumber;
+ VESA_BIOS_EXTENSIONS_EDID_TIMING Timing;
+ VESA_BIOS_EXTENSIONS_VALID_EDID_TIMING ValidEdidTiming;
+ EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *GraphicsOutputMode;
//
// Allocate buffer under 1MB for VBE data structures
//
BiosVideoPrivate->NumberOfPagesBelow1MB = EFI_SIZE_TO_PAGES (
- sizeof (VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK) + sizeof (VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK) +
+ sizeof (VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK) +
+ sizeof (VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK) +
+ sizeof (VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK) +
sizeof (VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK)
);
@@ -814,19 +1237,24 @@ BiosVideoCheckForVbe ( if (EFI_ERROR (Status)) {
return Status;
}
+
+ ZeroMem (&ValidEdidTiming, sizeof (VESA_BIOS_EXTENSIONS_VALID_EDID_TIMING));
+
//
- // Fill in the UGA Draw Protocol
+ // Fill in the Graphics Output Protocol
//
- BiosVideoPrivate->UgaDraw.GetMode = BiosVideoUgaDrawGetMode;
- BiosVideoPrivate->UgaDraw.SetMode = BiosVideoUgaDrawSetMode;
- BiosVideoPrivate->UgaDraw.Blt = BiosVideoUgaDrawVbeBlt;
+ BiosVideoPrivate->GraphicsOutput.QueryMode = BiosVideoGraphicsOutputQueryMode;
+ BiosVideoPrivate->GraphicsOutput.SetMode = BiosVideoGraphicsOutputSetMode;
+ BiosVideoPrivate->GraphicsOutput.Blt = BiosVideoGraphicsOutputVbeBlt;
+ BiosVideoPrivate->GraphicsOutput.Mode = NULL;
//
// Fill in the VBE related data structures
//
BiosVideoPrivate->VbeInformationBlock = (VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK *) (UINTN) (BiosVideoPrivate->PagesBelow1MB);
BiosVideoPrivate->VbeModeInformationBlock = (VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK *) (BiosVideoPrivate->VbeInformationBlock + 1);
- BiosVideoPrivate->VbeCrtcInformationBlock = (VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK *) (BiosVideoPrivate->VbeModeInformationBlock + 1);
+ BiosVideoPrivate->VbeEdidDataBlock = (VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK *) (BiosVideoPrivate->VbeModeInformationBlock + 1);
+ BiosVideoPrivate->VbeCrtcInformationBlock = (VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK *) (BiosVideoPrivate->VbeEdidDataBlock + 1);
BiosVideoPrivate->VbeSaveRestorePages = 0;
BiosVideoPrivate->VbeSaveRestoreBuffer = 0;
@@ -837,11 +1265,11 @@ BiosVideoCheckForVbe ( Regs.X.AX = VESA_BIOS_EXTENSIONS_RETURN_CONTROLLER_INFORMATION;
gBS->SetMem (BiosVideoPrivate->VbeInformationBlock, sizeof (VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK), 0);
BiosVideoPrivate->VbeInformationBlock->VESASignature = VESA_BIOS_EXTENSIONS_VBE2_SIGNATURE;
- Regs.X.ES = EFI_SEGMENT ((UINTN)BiosVideoPrivate->VbeInformationBlock);
- Regs.X.DI = EFI_OFFSET ((UINTN)BiosVideoPrivate->VbeInformationBlock);
-
- LegacyBiosInt86 (0x10, &Regs);
+ Regs.X.ES = EFI_SEGMENT ((UINTN) BiosVideoPrivate->VbeInformationBlock);
+ Regs.X.DI = EFI_OFFSET ((UINTN) BiosVideoPrivate->VbeInformationBlock);
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
Status = EFI_DEVICE_ERROR;
//
@@ -862,14 +1290,81 @@ BiosVideoCheckForVbe ( if (BiosVideoPrivate->VbeInformationBlock->VESAVersion < VESA_BIOS_EXTENSIONS_VERSION_2_0) {
return Status;
}
+
//
- // Walk through the mode list to see if there is at least one mode the is compatible with the UGA_DRAW protocol
+ // Read EDID information
+ //
+ gBS->SetMem (&Regs, sizeof (Regs), 0);
+ Regs.X.AX = VESA_BIOS_EXTENSIONS_EDID;
+ Regs.X.BX = 1;
+ Regs.X.CX = 0;
+ Regs.X.DX = 0;
+ Regs.X.ES = EFI_SEGMENT ((UINTN) BiosVideoPrivate->VbeEdidDataBlock);
+ Regs.X.DI = EFI_OFFSET ((UINTN) BiosVideoPrivate->VbeEdidDataBlock);
+
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
+ //
+ // See if the VESA call succeeded
+ //
+ EdidFound = FALSE;
+ if (Regs.X.AX == VESA_BIOS_EXTENSIONS_STATUS_SUCCESS) {
+ //
+ // Parse EDID data structure to retrieve modes supported by monitor
+ //
+ if (ParseEdidData ((UINT8 *) BiosVideoPrivate->VbeEdidDataBlock, &ValidEdidTiming) == TRUE) {
+ EdidFound = TRUE;
+
+ BiosVideoPrivate->EdidDiscovered.SizeOfEdid = VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE,
+ &BiosVideoPrivate->EdidDiscovered.Edid
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ gBS->CopyMem (
+ BiosVideoPrivate->EdidDiscovered.Edid,
+ BiosVideoPrivate->VbeEdidDataBlock,
+ VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE
+ );
+
+ BiosVideoPrivate->EdidActive.SizeOfEdid = VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE,
+ &BiosVideoPrivate->EdidActive.Edid
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ gBS->CopyMem (
+ BiosVideoPrivate->EdidActive.Edid,
+ BiosVideoPrivate->VbeEdidDataBlock,
+ VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE
+ );
+ } else {
+ BiosVideoPrivate->EdidDiscovered.SizeOfEdid = 0;
+ BiosVideoPrivate->EdidDiscovered.Edid = NULL;
+
+ BiosVideoPrivate->EdidActive.SizeOfEdid = 0;
+ BiosVideoPrivate->EdidActive.Edid = NULL;
+ }
+ }
+
+ //
+ // Walk through the mode list to see if there is at least one mode the is compatible with the EDID mode
//
ModeNumberPtr = (UINT16 *)
(
(((UINTN) BiosVideoPrivate->VbeInformationBlock->VideoModePtr & 0xffff0000) >> 12) |
((UINTN) BiosVideoPrivate->VbeInformationBlock->VideoModePtr & 0x0000ffff)
);
+
+ PreferMode = 0;
+ ModeNumber = 0;
+
for (; *ModeNumberPtr != VESA_BIOS_EXTENSIONS_END_OF_MODE_LIST; ModeNumberPtr++) {
//
// Make sure this is a mode number defined by the VESA VBE specification. If it isn'tm then skip this mode number.
@@ -884,11 +1379,11 @@ BiosVideoCheckForVbe ( Regs.X.AX = VESA_BIOS_EXTENSIONS_RETURN_MODE_INFORMATION;
Regs.X.CX = *ModeNumberPtr;
gBS->SetMem (BiosVideoPrivate->VbeModeInformationBlock, sizeof (VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK), 0);
- Regs.X.ES = EFI_SEGMENT ((UINTN)BiosVideoPrivate->VbeModeInformationBlock);
- Regs.X.DI = EFI_OFFSET ((UINTN)BiosVideoPrivate->VbeModeInformationBlock);
-
- LegacyBiosInt86 (0x10, &Regs);
+ Regs.X.ES = EFI_SEGMENT ((UINTN) BiosVideoPrivate->VbeModeInformationBlock);
+ Regs.X.DI = EFI_OFFSET ((UINTN) BiosVideoPrivate->VbeModeInformationBlock);
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
//
// See if the call succeeded. If it didn't, then try the next mode.
//
@@ -935,49 +1430,64 @@ BiosVideoCheckForVbe ( if (BiosVideoPrivate->VbeModeInformationBlock->PhysBasePtr == 0) {
continue;
}
+
+ if (EdidFound && (ValidEdidTiming.ValidNumber > 0)) {
+ //
+ // EDID exist, check whether this mode match with any mode in EDID
+ //
+ Timing.HorizontalResolution = BiosVideoPrivate->VbeModeInformationBlock->XResolution;
+ Timing.VerticalResolution = BiosVideoPrivate->VbeModeInformationBlock->YResolution;
+ if (SearchEdidTiming (&ValidEdidTiming, &Timing) == FALSE) {
+ continue;
+ }
+ }
+
//
- // See if the resolution is 1024x768, 800x600, or 640x480
+ // Select a reasonable mode to be set for current display mode
//
ModeFound = FALSE;
+
if (BiosVideoPrivate->VbeModeInformationBlock->XResolution == 1024 &&
BiosVideoPrivate->VbeModeInformationBlock->YResolution == 768
) {
ModeFound = TRUE;
}
-
if (BiosVideoPrivate->VbeModeInformationBlock->XResolution == 800 &&
BiosVideoPrivate->VbeModeInformationBlock->YResolution == 600
) {
ModeFound = TRUE;
+ PreferMode = ModeNumber;
}
-
if (BiosVideoPrivate->VbeModeInformationBlock->XResolution == 640 &&
BiosVideoPrivate->VbeModeInformationBlock->YResolution == 480
) {
ModeFound = TRUE;
}
-
- if (!ModeFound) {
+ if ((!EdidFound) && (!ModeFound)) {
+ //
+ // When no EDID exist, only select three possible resolutions, i.e. 1024x768, 800x600, 640x480
+ //
continue;
}
+
//
// Add mode to the list of available modes
//
- BiosVideoPrivate->MaxMode++;
+ ModeNumber ++;
Status = gBS->AllocatePool (
EfiBootServicesData,
- BiosVideoPrivate->MaxMode * sizeof (BIOS_VIDEO_MODE_DATA),
+ ModeNumber * sizeof (BIOS_VIDEO_MODE_DATA),
(VOID **) &ModeBuffer
);
if (EFI_ERROR (Status)) {
goto Done;
}
- if (BiosVideoPrivate->MaxMode > 1) {
+ if (ModeNumber > 1) {
gBS->CopyMem (
ModeBuffer,
BiosVideoPrivate->ModeData,
- (BiosVideoPrivate->MaxMode - 1) * sizeof (BIOS_VIDEO_MODE_DATA)
+ (ModeNumber - 1) * sizeof (BIOS_VIDEO_MODE_DATA)
);
}
@@ -985,70 +1495,107 @@ BiosVideoCheckForVbe ( gBS->FreePool (BiosVideoPrivate->ModeData);
}
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].VbeModeNumber = *ModeNumberPtr;
+ CurrentModeData = &ModeBuffer[ModeNumber - 1];
+ CurrentModeData->VbeModeNumber = *ModeNumberPtr;
if (BiosVideoPrivate->VbeInformationBlock->VESAVersion >= VESA_BIOS_EXTENSIONS_VERSION_3_0) {
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].BytesPerScanLine = BiosVideoPrivate->VbeModeInformationBlock->LinBytesPerScanLine;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Red.Position = BiosVideoPrivate->VbeModeInformationBlock->LinRedFieldPosition;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Red.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinRedMaskSize) - 1);
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Blue.Position = BiosVideoPrivate->VbeModeInformationBlock->LinBlueFieldPosition;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Blue.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinBlueMaskSize) - 1);
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Green.Position = BiosVideoPrivate->VbeModeInformationBlock->LinGreenFieldPosition;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Green.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinGreenMaskSize) - 1);
-
+ CurrentModeData->BytesPerScanLine = BiosVideoPrivate->VbeModeInformationBlock->LinBytesPerScanLine;
+ CurrentModeData->Red.Position = BiosVideoPrivate->VbeModeInformationBlock->LinRedFieldPosition;
+ CurrentModeData->Red.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinRedMaskSize) - 1);
+ CurrentModeData->Blue.Position = BiosVideoPrivate->VbeModeInformationBlock->LinBlueFieldPosition;
+ CurrentModeData->Blue.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinBlueMaskSize) - 1);
+ CurrentModeData->Green.Position = BiosVideoPrivate->VbeModeInformationBlock->LinGreenFieldPosition;
+ CurrentModeData->Green.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinGreenMaskSize) - 1);
+ CurrentModeData->Reserved.Position = BiosVideoPrivate->VbeModeInformationBlock->LinRsvdFieldPosition;
+ CurrentModeData->Reserved.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->LinRsvdMaskSize) - 1);
} else {
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].BytesPerScanLine = BiosVideoPrivate->VbeModeInformationBlock->BytesPerScanLine;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Red.Position = BiosVideoPrivate->VbeModeInformationBlock->RedFieldPosition;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Red.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->RedMaskSize) - 1);
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Blue.Position = BiosVideoPrivate->VbeModeInformationBlock->BlueFieldPosition;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Blue.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->BlueMaskSize) - 1);
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Green.Position = BiosVideoPrivate->VbeModeInformationBlock->GreenFieldPosition;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].Green.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->GreenMaskSize) - 1);
-
+ CurrentModeData->BytesPerScanLine = BiosVideoPrivate->VbeModeInformationBlock->BytesPerScanLine;
+ CurrentModeData->Red.Position = BiosVideoPrivate->VbeModeInformationBlock->RedFieldPosition;
+ CurrentModeData->Red.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->RedMaskSize) - 1);
+ CurrentModeData->Blue.Position = BiosVideoPrivate->VbeModeInformationBlock->BlueFieldPosition;
+ CurrentModeData->Blue.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->BlueMaskSize) - 1);
+ CurrentModeData->Green.Position = BiosVideoPrivate->VbeModeInformationBlock->GreenFieldPosition;
+ CurrentModeData->Green.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->GreenMaskSize) - 1);
+ CurrentModeData->Reserved.Position = BiosVideoPrivate->VbeModeInformationBlock->RsvdFieldPosition;
+ CurrentModeData->Reserved.Mask = (UINT8) ((1 << BiosVideoPrivate->VbeModeInformationBlock->RsvdMaskSize) - 1);
}
-
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].LinearFrameBuffer = (VOID *) (UINTN)BiosVideoPrivate->VbeModeInformationBlock->PhysBasePtr;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].HorizontalResolution = BiosVideoPrivate->VbeModeInformationBlock->XResolution;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].VerticalResolution = BiosVideoPrivate->VbeModeInformationBlock->YResolution;
-
- if (BiosVideoPrivate->VbeModeInformationBlock->BitsPerPixel >= 24) {
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].ColorDepth = 32;
- } else {
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].ColorDepth = BiosVideoPrivate->VbeModeInformationBlock->BitsPerPixel;
+ CurrentModeData->PixelFormat = PixelBitMask;
+ if ((BiosVideoPrivate->VbeModeInformationBlock->BitsPerPixel == 32) &&
+ (CurrentModeData->Red.Mask == 0xff) && (CurrentModeData->Green.Mask == 0xff) && (CurrentModeData->Blue.Mask == 0xff)) {
+ if ((CurrentModeData->Red.Position == 0) && (CurrentModeData->Green.Position == 8) && (CurrentModeData->Blue.Position == 16)) {
+ CurrentModeData->PixelFormat = PixelRedGreenBlueReserved8BitPerColor;
+ } else if ((CurrentModeData->Blue.Position == 0) && (CurrentModeData->Green.Position == 8) && (CurrentModeData->Red.Position == 16)) {
+ CurrentModeData->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;
+ }
}
+ CurrentModeData->PixelBitMask.RedMask = ((UINT32) CurrentModeData->Red.Mask) << CurrentModeData->Red.Position;
+ CurrentModeData->PixelBitMask.GreenMask = ((UINT32) CurrentModeData->Green.Mask) << CurrentModeData->Green.Position;
+ CurrentModeData->PixelBitMask.BlueMask = ((UINT32) CurrentModeData->Blue.Mask) << CurrentModeData->Blue.Position;
+ CurrentModeData->PixelBitMask.ReservedMask = ((UINT32) CurrentModeData->Reserved.Mask) << CurrentModeData->Reserved.Position;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].BitsPerPixel = BiosVideoPrivate->VbeModeInformationBlock->BitsPerPixel;
+ CurrentModeData->LinearFrameBuffer = (VOID *) (UINTN)BiosVideoPrivate->VbeModeInformationBlock->PhysBasePtr;
+ CurrentModeData->FrameBufferSize = BiosVideoPrivate->VbeInformationBlock->TotalMemory * 64 * 1024;
+ CurrentModeData->HorizontalResolution = BiosVideoPrivate->VbeModeInformationBlock->XResolution;
+ CurrentModeData->VerticalResolution = BiosVideoPrivate->VbeModeInformationBlock->YResolution;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].RefreshRate = 60;
+ CurrentModeData->BitsPerPixel = BiosVideoPrivate->VbeModeInformationBlock->BitsPerPixel;
BiosVideoPrivate->ModeData = ModeBuffer;
}
//
- // Check to see if we found any modes that are compatible with UGA DRAW
+ // Check to see if we found any modes that are compatible with GRAPHICS OUTPUT
//
- if (BiosVideoPrivate->MaxMode == 0) {
+ if (ModeNumber == 0) {
Status = EFI_DEVICE_ERROR;
goto Done;
}
+
+ //
+ // Allocate buffer for Graphics Output Protocol mode information
+ //
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE),
+ (VOID **) &BiosVideoPrivate->GraphicsOutput.Mode
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ GraphicsOutputMode = BiosVideoPrivate->GraphicsOutput.Mode;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION),
+ (VOID **) &GraphicsOutputMode->Info
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ GraphicsOutputMode->MaxMode = (UINT32) ModeNumber;
+ //
+ // Current mode is unknow till now, set it to an invalid mode.
+ //
+ GraphicsOutputMode->Mode = GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER;
+
//
// Find the best mode to initialize
//
- Status = BiosVideoUgaDrawSetMode (&BiosVideoPrivate->UgaDraw, 1024, 768, 32, 60);
- //Status = BiosVideoUgaDrawSetMode (&BiosVideoPrivate->UgaDraw, 800, 600, 32, 60);
+ Status = BiosVideoGraphicsOutputSetMode (&BiosVideoPrivate->GraphicsOutput, (UINT32) PreferMode);
if (EFI_ERROR (Status)) {
- Status = BiosVideoUgaDrawSetMode (&BiosVideoPrivate->UgaDraw, 800, 600, 32, 60);
- //Status = BiosVideoUgaDrawSetMode (&BiosVideoPrivate->UgaDraw, 1024, 768, 32, 60);
- if (EFI_ERROR (Status)) {
- Status = BiosVideoUgaDrawSetMode (&BiosVideoPrivate->UgaDraw, 640, 480, 32, 60);
- for (Index = 0; EFI_ERROR (Status) && Index < BiosVideoPrivate->MaxMode; Index++) {
- Status = BiosVideoUgaDrawSetMode (
- &BiosVideoPrivate->UgaDraw,
- BiosVideoPrivate->ModeData[Index].HorizontalResolution,
- BiosVideoPrivate->ModeData[Index].VerticalResolution,
- BiosVideoPrivate->ModeData[Index].ColorDepth,
- BiosVideoPrivate->ModeData[Index].RefreshRate
- );
+ for (PreferMode = 0; PreferMode < ModeNumber; PreferMode ++) {
+ Status = BiosVideoGraphicsOutputSetMode (
+ &BiosVideoPrivate->GraphicsOutput,
+ (UINT32) PreferMode
+ );
+ if (!EFI_ERROR (Status)) {
+ break;
}
}
+ if (PreferMode == ModeNumber) {
+ //
+ // None mode is set successfully.
+ //
+ goto Done;
+ }
}
Done:
@@ -1058,8 +1605,12 @@ Done: if (EFI_ERROR (Status)) {
if (BiosVideoPrivate->ModeData != NULL) {
gBS->FreePool (BiosVideoPrivate->ModeData);
- BiosVideoPrivate->ModeData = NULL;
- BiosVideoPrivate->MaxMode = 0;
+ }
+ if (BiosVideoPrivate->GraphicsOutput.Mode != NULL) {
+ if (BiosVideoPrivate->GraphicsOutput.Mode->Info != NULL) {
+ gBS->FreePool (BiosVideoPrivate->GraphicsOutput.Mode->Info);
+ }
+ gBS->FreePool (BiosVideoPrivate->GraphicsOutput.Mode);
}
}
@@ -1067,295 +1618,324 @@ Done: }
EFI_STATUS
+EFIAPI
BiosVideoCheckForVga (
- IN OUT BIOS_VIDEO_DEV *BiosVideoPrivate
+ IN OUT BIOS_VIDEO_DEV *BiosVideoPrivate
)
/*++
-
+
Routine Description:
Check for VGA device
-
+
Arguments:
-
+
BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure
-
+
Returns:
-
+
EFI_SUCCESS - Standard VGA device found
-
+
--*/
{
EFI_STATUS Status;
BIOS_VIDEO_MODE_DATA *ModeBuffer;
+
+ //
+ // Fill in the Graphics Output Protocol
+ //
+ BiosVideoPrivate->GraphicsOutput.QueryMode = BiosVideoGraphicsOutputQueryMode;
+ BiosVideoPrivate->GraphicsOutput.SetMode = BiosVideoGraphicsOutputSetMode;
+ BiosVideoPrivate->GraphicsOutput.Blt = BiosVideoGraphicsOutputVgaBlt;
//
- // Fill in the UGA Draw Protocol
+ // Allocate buffer for Graphics Output Protocol mode information
//
- BiosVideoPrivate->UgaDraw.GetMode = BiosVideoUgaDrawGetMode;
- BiosVideoPrivate->UgaDraw.SetMode = BiosVideoUgaDrawSetMode;
- BiosVideoPrivate->UgaDraw.Blt = BiosVideoUgaDrawVgaBlt;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE),
+ (VOID **) &BiosVideoPrivate->GraphicsOutput.Mode
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION),
+ (VOID **) &BiosVideoPrivate->GraphicsOutput.Mode->Info
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
//
// Add mode to the list of available modes
//
- BiosVideoPrivate->MaxMode++;
+ BiosVideoPrivate->GraphicsOutput.Mode->MaxMode = 1;
+
Status = gBS->AllocatePool (
EfiBootServicesData,
- BiosVideoPrivate->MaxMode * sizeof (BIOS_VIDEO_MODE_DATA),
+ sizeof (BIOS_VIDEO_MODE_DATA),
(VOID **) &ModeBuffer
);
if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if (BiosVideoPrivate->MaxMode > 1) {
- gBS->CopyMem (
- ModeBuffer,
- BiosVideoPrivate->ModeData,
- (BiosVideoPrivate->MaxMode - 1) * sizeof (BIOS_VIDEO_MODE_DATA)
- );
- }
-
- if (BiosVideoPrivate->ModeData != NULL) {
- gBS->FreePool (BiosVideoPrivate->ModeData);
+ goto Done;
}
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].VbeModeNumber = 0x0012;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].BytesPerScanLine = 640;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].LinearFrameBuffer = (VOID *) (UINTN)(0xa0000);
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].HorizontalResolution = 640;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].VerticalResolution = 480;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].ColorDepth = 32;
- ModeBuffer[BiosVideoPrivate->MaxMode - 1].RefreshRate = 60;
+ ModeBuffer->VbeModeNumber = 0x0012;
+ ModeBuffer->BytesPerScanLine = 640;
+ ModeBuffer->LinearFrameBuffer = (VOID *) (UINTN) (0xa0000);
+ ModeBuffer->FrameBufferSize = 0;
+ ModeBuffer->HorizontalResolution = 640;
+ ModeBuffer->VerticalResolution = 480;
+ ModeBuffer->BitsPerPixel = 8;
+ ModeBuffer->PixelFormat = PixelBltOnly;
BiosVideoPrivate->ModeData = ModeBuffer;
//
// Test to see if the Video Adapter support the 640x480 16 color mode
//
- Status = BiosVideoUgaDrawSetMode (&BiosVideoPrivate->UgaDraw, 640, 480, 32, 60);
+ BiosVideoPrivate->GraphicsOutput.Mode->Mode = GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER;
+ Status = BiosVideoGraphicsOutputSetMode (&BiosVideoPrivate->GraphicsOutput, 0);
+Done:
//
// If there was an error, then free the mode structure
//
if (EFI_ERROR (Status)) {
- BiosVideoPrivate->MaxMode = 0;
if (BiosVideoPrivate->ModeData != NULL) {
gBS->FreePool (BiosVideoPrivate->ModeData);
}
+ if (BiosVideoPrivate->GraphicsOutput.Mode != NULL) {
+ if (BiosVideoPrivate->GraphicsOutput.Mode->Info != NULL) {
+ gBS->FreePool (BiosVideoPrivate->GraphicsOutput.Mode->Info);
+ }
+ gBS->FreePool (BiosVideoPrivate->GraphicsOutput.Mode);
+ }
}
-
return Status;
}
//
-// UGA Protocol Member Functions for VESA BIOS Extensions
+// Graphics Output Protocol Member Functions for VESA BIOS Extensions
//
EFI_STATUS
EFIAPI
-BiosVideoUgaDrawGetMode (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- OUT UINT32 *HorizontalResolution,
- OUT UINT32 *VerticalResolution,
- OUT UINT32 *ColorDepth,
- OUT UINT32 *RefreshRate
+BiosVideoGraphicsOutputQueryMode (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN UINT32 ModeNumber,
+ OUT UINTN *SizeOfInfo,
+ OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
)
/*++
Routine Description:
- UGA protocol interface to get video mode
-
-Arguments:
-
- This - Pointer to UGA draw protocol instance
- HorizontalResolution - Horizontal Resolution, in pixels
- VerticalResolution - Vertical Resolution, in pixels
- ColorDepth - Bit number used to represent color value of a pixel
- RefreshRate - Refresh rate, in Hertz
+ Graphics Output protocol interface to get video mode
-Returns:
+ Arguments:
+ This - Protocol instance pointer.
+ ModeNumber - The mode number to return information on.
+ Info - Caller allocated buffer that returns information about ModeNumber.
+ SizeOfInfo - A pointer to the size, in bytes, of the Info buffer.
- EFI_DEVICE_ERROR - Hardware need starting
- EFI_INVALID_PARAMETER - Invalid parameter passed in
- EFI_SUCCESS - Video mode query successfully
+ Returns:
+ EFI_SUCCESS - Mode information returned.
+ EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.
+ EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
+ EFI_INVALID_PARAMETER - One of the input args was NULL.
--*/
{
- BIOS_VIDEO_DEV *BiosVideoPrivate;
+ BIOS_VIDEO_DEV *BiosVideoPrivate;
+ EFI_STATUS Status;
+ BIOS_VIDEO_MODE_DATA *ModeData;
- BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS (This);
+ BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);
if (BiosVideoPrivate->HardwareNeedsStarting) {
- return EFI_DEVICE_ERROR;
+ return EFI_NOT_STARTED;
}
- if (HorizontalResolution == NULL || VerticalResolution == NULL || ColorDepth == NULL || RefreshRate == NULL) {
+ if (This == NULL || Info == NULL || SizeOfInfo == NULL || ModeNumber >= This->Mode->MaxMode) {
return EFI_INVALID_PARAMETER;
}
- *HorizontalResolution = BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].HorizontalResolution;
- *VerticalResolution = BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].VerticalResolution;
- *ColorDepth = BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].ColorDepth;
- *RefreshRate = BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].RefreshRate;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION),
+ Info
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ *SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
+
+ ModeData = &BiosVideoPrivate->ModeData[ModeNumber];
+ (*Info)->Version = 0;
+ (*Info)->HorizontalResolution = ModeData->HorizontalResolution;
+ (*Info)->VerticalResolution = ModeData->VerticalResolution;
+ (*Info)->PixelFormat = ModeData->PixelFormat;
+ (*Info)->PixelInformation = ModeData->PixelBitMask;
+
+ (*Info)->PixelsPerScanLine = (ModeData->BytesPerScanLine * 8) / ModeData->BitsPerPixel;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
-BiosVideoUgaDrawSetMode (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- IN UINT32 HorizontalResolution,
- IN UINT32 VerticalResolution,
- IN UINT32 ColorDepth,
- IN UINT32 RefreshRate
+BiosVideoGraphicsOutputSetMode (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
+ IN UINT32 ModeNumber
)
/*++
Routine Description:
- UGA draw protocol interface to set video mode
+ Graphics Output protocol interface to set video mode
-Arguments:
-
- This - Pointer to UGA draw protocol instance
- HorizontalResolution - Horizontal Resolution, in pixels
- VerticalResolution - Vertical Resolution, in pixels
- ColorDepth - Bit number used to represent color value of a pixel
- RefreshRate - Refresh rate, in Hertz
-
-Returns:
+ Arguments:
+ This - Protocol instance pointer.
+ ModeNumber - The mode number to be set.
- EFI_DEVICE_ERROR - Device error
- EFI_SUCCESS - Video mode set successfully
- EFI_UNSUPPORTED - Cannot support this video mode
+ Returns:
+ EFI_SUCCESS - Graphics mode was changed.
+ EFI_DEVICE_ERROR - The device had an error and could not complete the request.
+ EFI_UNSUPPORTED - ModeNumber is not supported by this device.
--*/
{
- EFI_STATUS Status;
- BIOS_VIDEO_DEV *BiosVideoPrivate;
- UINTN Index;
- EFI_IA32_REGISTER_SET Regs;
+ EFI_STATUS Status;
+ BIOS_VIDEO_DEV *BiosVideoPrivate;
+ EFI_IA32_REGISTER_SET Regs;
+ BIOS_VIDEO_MODE_DATA *ModeData;
- BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS (This);
+ BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);
- for (Index = 0; Index < BiosVideoPrivate->MaxMode; Index++) {
+ if (This == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
- if (HorizontalResolution != BiosVideoPrivate->ModeData[Index].HorizontalResolution) {
- continue;
- }
+ if (ModeNumber >= This->Mode->MaxMode) {
+ return EFI_UNSUPPORTED;
+ }
- if (VerticalResolution != BiosVideoPrivate->ModeData[Index].VerticalResolution) {
- continue;
- }
+ if (ModeNumber == This->Mode->Mode) {
+ return EFI_SUCCESS;
+ }
- if (ColorDepth != BiosVideoPrivate->ModeData[Index].ColorDepth) {
- continue;
- }
+ ModeData = &BiosVideoPrivate->ModeData[ModeNumber];
- if (RefreshRate != BiosVideoPrivate->ModeData[Index].RefreshRate) {
- continue;
- }
+ if (BiosVideoPrivate->LineBuffer) {
+ gBS->FreePool (BiosVideoPrivate->LineBuffer);
+ }
- if (BiosVideoPrivate->LineBuffer) {
- gBS->FreePool (BiosVideoPrivate->LineBuffer);
- }
+ if (BiosVideoPrivate->VgaFrameBuffer) {
+ gBS->FreePool (BiosVideoPrivate->VgaFrameBuffer);
+ }
- if (BiosVideoPrivate->VgaFrameBuffer) {
- gBS->FreePool (BiosVideoPrivate->VgaFrameBuffer);
- }
+ if (BiosVideoPrivate->VbeFrameBuffer) {
+ gBS->FreePool (BiosVideoPrivate->VbeFrameBuffer);
+ }
- if (BiosVideoPrivate->VbeFrameBuffer) {
- gBS->FreePool (BiosVideoPrivate->VbeFrameBuffer);
- }
+ BiosVideoPrivate->LineBuffer = NULL;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ ModeData->BytesPerScanLine,
+ &BiosVideoPrivate->LineBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Clear all registers
+ //
+ gBS->SetMem (&Regs, sizeof (Regs), 0);
- BiosVideoPrivate->LineBuffer = NULL;
+ if (ModeData->VbeModeNumber < 0x100) {
+ //
+ // Allocate a working buffer for BLT operations to the VGA frame buffer
+ //
+ BiosVideoPrivate->VgaFrameBuffer = NULL;
Status = gBS->AllocatePool (
EfiBootServicesData,
- BiosVideoPrivate->ModeData[Index].BytesPerScanLine,
- (VOID**)&BiosVideoPrivate->LineBuffer
+ 4 * 480 * 80,
+ &BiosVideoPrivate->VgaFrameBuffer
);
if (EFI_ERROR (Status)) {
return Status;
}
//
- // Clear all registers
+ // Set VGA Mode
//
- gBS->SetMem (&Regs, sizeof (Regs), 0);
-
- if (BiosVideoPrivate->ModeData[Index].VbeModeNumber < 0x100) {
- //
- // Allocate a working buffer for BLT operations to the VGA frame buffer
- //
- BiosVideoPrivate->VgaFrameBuffer = NULL;
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- 4 * 480 * 80,
- (VOID**)&BiosVideoPrivate->VgaFrameBuffer
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Set VGA Mode
- //
- Regs.X.AX = BiosVideoPrivate->ModeData[Index].VbeModeNumber;
- LegacyBiosInt86 (0x10, &Regs);
-
- } else {
- //
- // Allocate a working buffer for BLT operations to the VBE frame buffer
- //
- BiosVideoPrivate->VbeFrameBuffer = NULL;
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- BiosVideoPrivate->ModeData[Index].BytesPerScanLine * BiosVideoPrivate->ModeData[Index].VerticalResolution,
- (VOID**)&BiosVideoPrivate->VbeFrameBuffer
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Set VBE mode
- //
- Regs.X.AX = VESA_BIOS_EXTENSIONS_SET_MODE;
- Regs.X.BX = (UINT16) (BiosVideoPrivate->ModeData[Index].VbeModeNumber | VESA_BIOS_EXTENSIONS_MODE_NUMBER_LINEAR_FRAME_BUFFER);
- gBS->SetMem (BiosVideoPrivate->VbeCrtcInformationBlock, sizeof (VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK), 0);
- Regs.X.ES = EFI_SEGMENT ((UINTN)BiosVideoPrivate->VbeCrtcInformationBlock);
- Regs.X.DI = EFI_OFFSET ((UINTN)BiosVideoPrivate->VbeCrtcInformationBlock);
- LegacyBiosInt86 (0x10, &Regs);
+ Regs.X.AX = ModeData->VbeModeNumber;
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
- //
- // Check to see if the call succeeded
- //
- if (Regs.X.AX != VESA_BIOS_EXTENSIONS_STATUS_SUCCESS) {
- return EFI_DEVICE_ERROR;
- }
- //
- // Initialize the state of the VbeFrameBuffer
- //
- Status = BiosVideoPrivate->PciIo->Mem.Read (
- BiosVideoPrivate->PciIo,
- EfiPciIoWidthUint32,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- (UINT64) (UINTN) BiosVideoPrivate->ModeData[Index].LinearFrameBuffer,
- (BiosVideoPrivate->ModeData[Index].BytesPerScanLine * BiosVideoPrivate->ModeData[Index].VerticalResolution) >> 2,
- BiosVideoPrivate->VbeFrameBuffer
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
+ } else {
+ //
+ // Allocate a working buffer for BLT operations to the VBE frame buffer
+ //
+ BiosVideoPrivate->VbeFrameBuffer = NULL;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ ModeData->BytesPerScanLine * ModeData->VerticalResolution,
+ &BiosVideoPrivate->VbeFrameBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
}
+ //
+ // Set VBE mode
+ //
+ Regs.X.AX = VESA_BIOS_EXTENSIONS_SET_MODE;
+ Regs.X.BX = (UINT16) (ModeData->VbeModeNumber | VESA_BIOS_EXTENSIONS_MODE_NUMBER_LINEAR_FRAME_BUFFER);
+ gBS->SetMem (BiosVideoPrivate->VbeCrtcInformationBlock, sizeof (VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK), 0);
+ Regs.X.ES = EFI_SEGMENT ((UINTN) BiosVideoPrivate->VbeCrtcInformationBlock);
+ Regs.X.DI = EFI_OFFSET ((UINTN) BiosVideoPrivate->VbeCrtcInformationBlock);
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
+ //
+ // Check to see if the call succeeded
+ //
+ if (Regs.X.AX != VESA_BIOS_EXTENSIONS_STATUS_SUCCESS) {
+ return EFI_DEVICE_ERROR;
+ }
+ //
+ // Initialize the state of the VbeFrameBuffer
+ //
+ Status = BiosVideoPrivate->PciIo->Mem.Read (
+ BiosVideoPrivate->PciIo,
+ EfiPciIoWidthUint32,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ (UINT64) (UINTN) ModeData->LinearFrameBuffer,
+ (ModeData->BytesPerScanLine * ModeData->VerticalResolution) >> 2,
+ BiosVideoPrivate->VbeFrameBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
- BiosVideoPrivate->CurrentMode = Index;
+ This->Mode->Mode = ModeNumber;
+ This->Mode->Info->Version = 0;
+ This->Mode->Info->HorizontalResolution = ModeData->HorizontalResolution;
+ This->Mode->Info->VerticalResolution = ModeData->VerticalResolution;
+ This->Mode->Info->PixelFormat = ModeData->PixelFormat;
+ This->Mode->Info->PixelInformation = ModeData->PixelBitMask;
+ This->Mode->Info->PixelsPerScanLine = (ModeData->BytesPerScanLine * 8) / ModeData->BitsPerPixel;
+ This->Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
- BiosVideoPrivate->HardwareNeedsStarting = FALSE;
+ //
+ // Frame BufferSize remain unchanged
+ //
+ This->Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) ModeData->LinearFrameBuffer;
+ This->Mode->FrameBufferSize = ModeData->FrameBufferSize;
- return EFI_SUCCESS;
- }
+ BiosVideoPrivate->HardwareNeedsStarting = FALSE;
- return EFI_UNSUPPORTED;
+ return EFI_SUCCESS;
}
VOID
@@ -1476,27 +2056,27 @@ Returns: //
EFI_STATUS
EFIAPI
-BiosVideoUgaDrawVbeBlt (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL
- IN EFI_UGA_BLT_OPERATION BltOperation,
- IN UINTN SourceX,
- IN UINTN SourceY,
- IN UINTN DestinationX,
- IN UINTN DestinationY,
- IN UINTN Width,
- IN UINTN Height,
- IN UINTN Delta
+BiosVideoGraphicsOutputVbeBlt (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
+ IN UINTN SourceX,
+ IN UINTN SourceY,
+ IN UINTN DestinationX,
+ IN UINTN DestinationY,
+ IN UINTN Width,
+ IN UINTN Height,
+ IN UINTN Delta
)
/*++
Routine Description:
- UGA draw protocol instance to block transfer for VBE device
+ Graphics Output protocol instance to block transfer for VBE device
Arguments:
- This - Pointer to UGA draw protocol instance
+ This - Pointer to Graphics Output protocol instance
BltBuffer - The data to transfer to screen
BltOperation - The operation to perform
SourceX - The X coordinate of the source for BltOperation
@@ -1505,9 +2085,9 @@ Arguments: DestinationY - The Y coordinate of the destination for BltOperation
Width - The width of a rectangle in the blt rectangle in pixels
Height - The height of a rectangle in the blt rectangle in pixels
- Delta - Not used for EfiUgaVideoFill and EfiUgaVideoToVideo operation.
+ Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.
If a Delta of 0 is used, the entire BltBuffer will be operated on.
- If a subrectangle of the BltBuffer is used, then Delta represents
+ If a subrectangle of the BltBuffer is used, then Delta represents
the number of bytes in a row of the BltBuffer.
Returns:
@@ -1517,27 +2097,27 @@ Returns: --*/
{
- BIOS_VIDEO_DEV *BiosVideoPrivate;
- BIOS_VIDEO_MODE_DATA *Mode;
- EFI_PCI_IO_PROTOCOL *PciIo;
- EFI_TPL OriginalTPL;
- UINTN DstY;
- UINTN SrcY;
- UINTN DstX;
- EFI_UGA_PIXEL *Blt;
- VOID *MemAddress;
- EFI_UGA_PIXEL *VbeFrameBuffer;
- UINTN BytesPerScanLine;
- UINTN Index;
- UINT8 *VbeBuffer;
- UINT8 *VbeBuffer1;
- UINT8 *BltUint8;
- UINT32 VbePixelWidth;
- UINT32 Pixel;
- UINTN TotalBytes;
-
- BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS (This);
- Mode = &BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode];
+ BIOS_VIDEO_DEV *BiosVideoPrivate;
+ BIOS_VIDEO_MODE_DATA *Mode;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ EFI_TPL OriginalTPL;
+ UINTN DstY;
+ UINTN SrcY;
+ UINTN DstX;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Blt;
+ VOID *MemAddress;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;
+ UINTN BytesPerScanLine;
+ UINTN Index;
+ UINT8 *VbeBuffer;
+ UINT8 *VbeBuffer1;
+ UINT8 *BltUint8;
+ UINT32 VbePixelWidth;
+ UINT32 Pixel;
+ UINTN TotalBytes;
+
+ BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);
+ Mode = &BiosVideoPrivate->ModeData[This->Mode->Mode];
PciIo = BiosVideoPrivate->PciIo;
VbeFrameBuffer = BiosVideoPrivate->VbeFrameBuffer;
@@ -1547,7 +2127,7 @@ Returns: BltUint8 = (UINT8 *) BltBuffer;
TotalBytes = Width * VbePixelWidth;
- if ((BltOperation < EfiUgaVideoFill) || (BltOperation >= EfiUgaBltMax)) {
+ if (This == NULL || ((UINTN) BltOperation) >= EfiGraphicsOutputBltOperationMax) {
return EFI_INVALID_PARAMETER;
}
@@ -1559,7 +2139,7 @@ Returns: // The virtual screen is upside down, as the first row is the bootom row of
// the image.
//
- if (BltOperation == EfiUgaVideoToBltBuffer) {
+ if (BltOperation == EfiBltVideoToBltBuffer) {
//
// Video to BltBuffer: Source is Video, destination is BltBuffer
//
@@ -1588,7 +2168,7 @@ Returns: // the number of bytes in each row can be computed.
//
if (Delta == 0) {
- Delta = Width * sizeof (EFI_UGA_PIXEL);
+ Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);
}
//
// We have to raise to TPL Notify, so we make an atomic write the frame buffer.
@@ -1598,11 +2178,11 @@ Returns: OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY);
switch (BltOperation) {
- case EfiUgaVideoToBltBuffer:
+ case EfiBltVideoToBltBuffer:
for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY); SrcY++, DstY++) {
- Blt = (EFI_UGA_PIXEL *) (BltUint8 + DstY * Delta + DestinationX * sizeof (EFI_UGA_PIXEL));
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (BltUint8 + DstY * Delta + DestinationX * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
//
- // Shuffle the packed bytes in the hardware buffer to match EFI_UGA_PIXEL
+ // Shuffle the packed bytes in the hardware buffer to match EFI_GRAPHICS_OUTPUT_BLT_PIXEL
//
VbeBuffer = ((UINT8 *) VbeFrameBuffer + (SrcY * BytesPerScanLine + SourceX * VbePixelWidth));
for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {
@@ -1618,7 +2198,7 @@ Returns: }
break;
- case EfiUgaVideoToVideo:
+ case EfiBltVideoToVideo:
for (Index = 0; Index < Height; Index++) {
if (DestinationY <= SourceY) {
SrcY = SourceY + Index;
@@ -1653,11 +2233,11 @@ Returns: }
break;
- case EfiUgaVideoFill:
+ case EfiBltVideoFill:
VbeBuffer = (UINT8 *) ((UINTN) VbeFrameBuffer + (DestinationY * BytesPerScanLine) + DestinationX * VbePixelWidth);
- Blt = (EFI_UGA_PIXEL *) BltUint8;
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) BltUint8;
//
- // Shuffle the RGB fields in EFI_UGA_PIXEL to match the hardware buffer
+ // Shuffle the RGB fields in EFI_GRAPHICS_OUTPUT_BLT_PIXEL to match the hardware buffer
//
Pixel = ((Blt->Red & Mode->Red.Mask) << Mode->Red.Position) |
(
@@ -1698,16 +2278,15 @@ Returns: BytesPerScanLine
);
}
-
break;
- case EfiUgaBltBufferToVideo:
+ case EfiBltBufferToVideo:
for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {
- Blt = (EFI_UGA_PIXEL *) (BltUint8 + (SrcY * Delta) + (SourceX) * sizeof (EFI_UGA_PIXEL));
+ Blt = (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *) (BltUint8 + (SrcY * Delta) + (SourceX) * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
VbeBuffer = ((UINT8 *) VbeFrameBuffer + (DstY * BytesPerScanLine + DestinationX * VbePixelWidth));
for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {
//
- // Shuffle the RGB fields in EFI_UGA_PIXEL to match the hardware buffer
+ // Shuffle the RGB fields in EFI_GRAPHICS_OUTPUT_BLT_PIXEL to match the hardware buffer
//
Pixel = ((Blt->Red & Mode->Red.Mask) << Mode->Red.Position) |
((Blt->Green & Mode->Green.Mask) << Mode->Green.Position) |
@@ -1738,8 +2317,6 @@ Returns: );
}
break;
- default:
- break;
}
gBS->RestoreTPL (OriginalTPL);
@@ -1847,7 +2424,7 @@ Returns: PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
- (UINT64) (UINTN)Source,
+ (UINT64) Source,
WidthInBytes,
(VOID *) Destination
);
@@ -1856,24 +2433,24 @@ Returns: }
VOID
-VgaConvertToUgaColor (
- UINT8 *MemoryBuffer,
- UINTN X,
- UINTN Y,
- EFI_UGA_PIXEL *BltBuffer
+VgaConvertToGraphicsOutputColor (
+ UINT8 *MemoryBuffer,
+ UINTN X,
+ UINTN Y,
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer
)
/*++
Routine Description:
- Internal routine to convert VGA color to UGA color
+ Internal routine to convert VGA color to Grahpics Output color
Arguments:
MemoryBuffer - Buffer containing VGA color
X - The X coordinate of pixel on screen
Y - The Y coordinate of pixel on screen
- BltBuffer - Buffer to contain converted UGA color
+ BltBuffer - Buffer to contain converted Grahpics Output color
Returns:
@@ -1893,22 +2470,22 @@ Returns: }
}
- *BltBuffer = mVgaColorToUgaColor[Color];
+ *BltBuffer = mVgaColorToGraphicsOutputColor[Color];
}
UINT8
VgaConvertColor (
- IN EFI_UGA_PIXEL *BltBuffer
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer
)
/*++
Routine Description:
- Internal routine to convert UGA color to VGA color
+ Internal routine to convert Grahpics Output color to VGA color
Arguments:
- BltBuffer - buffer containing UGA color
+ BltBuffer - buffer containing Grahpics Output color
Returns:
@@ -1928,27 +2505,27 @@ Returns: EFI_STATUS
EFIAPI
-BiosVideoUgaDrawVgaBlt (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL
- IN EFI_UGA_BLT_OPERATION BltOperation,
- IN UINTN SourceX,
- IN UINTN SourceY,
- IN UINTN DestinationX,
- IN UINTN DestinationY,
- IN UINTN Width,
- IN UINTN Height,
- IN UINTN Delta
+BiosVideoGraphicsOutputVgaBlt (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
+ IN UINTN SourceX,
+ IN UINTN SourceY,
+ IN UINTN DestinationX,
+ IN UINTN DestinationY,
+ IN UINTN Width,
+ IN UINTN Height,
+ IN UINTN Delta
)
/*++
Routine Description:
- UGA draw protocol instance to block transfer for VGA device
+ Grahpics Output protocol instance to block transfer for VGA device
Arguments:
- This - Pointer to UGA draw protocol instance
+ This - Pointer to Grahpics Output protocol instance
BltBuffer - The data to transfer to screen
BltOperation - The operation to perform
SourceX - The X coordinate of the source for BltOperation
@@ -1957,9 +2534,9 @@ Arguments: DestinationY - The Y coordinate of the destination for BltOperation
Width - The width of a rectangle in the blt rectangle in pixels
Height - The height of a rectangle in the blt rectangle in pixels
- Delta - Not used for EfiUgaVideoFill and EfiUgaVideoToVideo operation.
+ Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.
If a Delta of 0 is used, the entire BltBuffer will be operated on.
- If a subrectangle of the BltBuffer is used, then Delta represents
+ If a subrectangle of the BltBuffer is used, then Delta represents
the number of bytes in a row of the BltBuffer.
Returns:
@@ -1997,16 +2574,18 @@ Returns: UINTN Columns;
UINTN X;
UINTN Y;
+ UINTN CurrentMode;
- BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS (This);
+ BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS (This);
+ CurrentMode = This->Mode->Mode;
PciIo = BiosVideoPrivate->PciIo;
- MemAddress = BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].LinearFrameBuffer;
- BytesPerScanLine = BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].BytesPerScanLine >> 3;
- BytesPerBitPlane = BytesPerScanLine * BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].VerticalResolution;
+ MemAddress = BiosVideoPrivate->ModeData[CurrentMode].LinearFrameBuffer;
+ BytesPerScanLine = BiosVideoPrivate->ModeData[CurrentMode].BytesPerScanLine >> 3;
+ BytesPerBitPlane = BytesPerScanLine * BiosVideoPrivate->ModeData[CurrentMode].VerticalResolution;
VgaFrameBuffer = BiosVideoPrivate->VgaFrameBuffer;
- if ((BltOperation < EfiUgaVideoFill) || (BltOperation >= EfiUgaBltMax)) {
+ if (This == NULL || ((UINTN) BltOperation) >= EfiGraphicsOutputBltOperationMax) {
return EFI_INVALID_PARAMETER;
}
@@ -2018,26 +2597,26 @@ Returns: // The virtual screen is upside down, as the first row is the bootom row of
// the image.
//
- if (BltOperation == EfiUgaVideoToBltBuffer) {
+ if (BltOperation == EfiBltVideoToBltBuffer) {
//
// Video to BltBuffer: Source is Video, destination is BltBuffer
//
- if (SourceY + Height > BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].VerticalResolution) {
+ if (SourceY + Height > BiosVideoPrivate->ModeData[CurrentMode].VerticalResolution) {
return EFI_INVALID_PARAMETER;
}
- if (SourceX + Width > BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].HorizontalResolution) {
+ if (SourceX + Width > BiosVideoPrivate->ModeData[CurrentMode].HorizontalResolution) {
return EFI_INVALID_PARAMETER;
}
} else {
//
// BltBuffer to Video: Source is BltBuffer, destination is Video
//
- if (DestinationY + Height > BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].VerticalResolution) {
+ if (DestinationY + Height > BiosVideoPrivate->ModeData[CurrentMode].VerticalResolution) {
return EFI_INVALID_PARAMETER;
}
- if (DestinationX + Width > BiosVideoPrivate->ModeData[BiosVideoPrivate->CurrentMode].HorizontalResolution) {
+ if (DestinationX + Width > BiosVideoPrivate->ModeData[CurrentMode].HorizontalResolution) {
return EFI_INVALID_PARAMETER;
}
}
@@ -2047,7 +2626,7 @@ Returns: // the number of bytes in each row can be computed.
//
if (Delta == 0) {
- Delta = Width * sizeof (EFI_UGA_PIXEL);
+ Delta = Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);
}
//
// We have to raise to TPL Notify, so we make an atomic write the frame buffer.
@@ -2060,7 +2639,7 @@ Returns: // Compute some values we need for VGA
//
switch (BltOperation) {
- case EfiUgaVideoToBltBuffer:
+ case EfiBltVideoToBltBuffer:
SourceOffset = (SourceY << 6) + (SourceY << 4) + (SourceX >> 3);
SourceWidth = ((SourceX + Width - 1) >> 3) - (SourceX >> 3) + 1;
@@ -2077,12 +2656,12 @@ Returns: );
//
- // Convert VGA Bit Planes to a UGA 32-bit color value
+ // Convert VGA Bit Planes to a Graphics Output 32-bit color value
//
BltBuffer += (DestinationY * (Delta >> 2) + DestinationX);
for (Rows = 0, Y = SourceY; Rows < Height; Rows++, Y++, BltBuffer += (Delta >> 2)) {
for (Columns = 0, X = SourceX; Columns < Width; Columns++, X++, BltBuffer++) {
- VgaConvertToUgaColor (VgaFrameBuffer, X, Y, BltBuffer);
+ VgaConvertToGraphicsOutputColor (VgaFrameBuffer, X, Y, BltBuffer);
}
BltBuffer -= Width;
@@ -2090,7 +2669,7 @@ Returns: break;
- case EfiUgaVideoToVideo:
+ case EfiBltVideoToVideo:
//
// Check for an aligned Video to Video operation
//
@@ -2099,7 +2678,7 @@ Returns: // Program the Mode Register Write mode 1, Read mode 0
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_MODE_REGISTER,
VGA_GRAPHICS_CONTROLLER_READ_MODE_0 | VGA_GRAPHICS_CONTROLLER_WRITE_MODE_1
);
@@ -2112,9 +2691,9 @@ Returns: PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
- (UINT64) ((UINTN)DestinationAddress + Offset),
+ (UINT64) (DestinationAddress + Offset),
EFI_PCI_IO_PASS_THROUGH_BAR,
- (UINT64) ((UINTN)SourceAddress + Offset),
+ (UINT64) (SourceAddress + Offset),
Bytes
);
}
@@ -2136,7 +2715,7 @@ Returns: break;
- case EfiUgaVideoFill:
+ case EfiBltVideoFill:
StartAddress = (UINTN) (MemAddress + (DestinationY << 6) + (DestinationY << 4) + (DestinationX >> 3));
Bytes = ((DestinationX + Width - 1) >> 3) - (DestinationX >> 3);
LeftMask = mVgaLeftMaskTable[DestinationX & 0x07];
@@ -2163,7 +2742,7 @@ Returns: // Program the Mode Register Write mode 2, Read mode 0
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_MODE_REGISTER,
VGA_GRAPHICS_CONTROLLER_READ_MODE_0 | VGA_GRAPHICS_CONTROLLER_WRITE_MODE_2
);
@@ -2172,7 +2751,7 @@ Returns: // Program the Data Rotate/Function Select Register to replace
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_DATA_ROTATE_REGISTER,
VGA_GRAPHICS_CONTROLLER_FUNCTION_REPLACE
);
@@ -2182,7 +2761,7 @@ Returns: // Program the BitMask register with the Left column mask
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER,
LeftMask
);
@@ -2218,7 +2797,7 @@ Returns: // Program the BitMask register with the middle column mask of 0xff
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER,
0xff
);
@@ -2240,7 +2819,7 @@ Returns: // Program the BitMask register with the Right column mask
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER,
RightMask
);
@@ -2272,7 +2851,7 @@ Returns: }
break;
- case EfiUgaBltBufferToVideo:
+ case EfiBltBufferToVideo:
StartAddress = (UINTN) (MemAddress + (DestinationY << 6) + (DestinationY << 4) + (DestinationX >> 3));
LeftMask = mVgaBitMaskTable[DestinationX & 0x07];
@@ -2280,7 +2859,7 @@ Returns: // Program the Mode Register Write mode 2, Read mode 0
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_MODE_REGISTER,
VGA_GRAPHICS_CONTROLLER_READ_MODE_0 | VGA_GRAPHICS_CONTROLLER_WRITE_MODE_2
);
@@ -2289,7 +2868,7 @@ Returns: // Program the Data Rotate/Function Select Register to replace
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_DATA_ROTATE_REGISTER,
VGA_GRAPHICS_CONTROLLER_FUNCTION_REPLACE
);
@@ -2305,7 +2884,7 @@ Returns: // Program the BitMask register with the Left column mask
//
WriteGraphicsController (
- BiosVideoPrivate->PciIo,
+ PciIo,
VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER,
LeftMask
);
@@ -2318,7 +2897,7 @@ Returns: PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
- (UINT64) (UINTN) Address1,
+ (UINT64) Address1,
1,
&Data
);
@@ -2327,7 +2906,7 @@ Returns: PciIo,
EfiPciIoWidthUint8,
EFI_PCI_IO_PASS_THROUGH_BAR,
- (UINT64) (UINTN) Address1,
+ (UINT64) Address1,
1,
&BiosVideoPrivate->LineBuffer[Index1]
);
@@ -2342,8 +2921,6 @@ Returns: }
break;
- default:
- break;
}
gBS->RestoreTPL (OriginalTPL);
@@ -2380,6 +2957,10 @@ Returns: BIOS_VIDEO_DEV *BiosVideoPrivate;
EFI_IA32_REGISTER_SET Regs;
+ if (This == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
//
// Make sure the ModeNumber is a valid value
//
@@ -2390,7 +2971,7 @@ Returns: // Get the device structure for this device
//
BiosVideoPrivate = BIOS_VIDEO_DEV_FROM_VGA_MINI_PORT_THIS (This);
-
+
gBS->SetMem (&Regs, sizeof (Regs), 0);
switch (ModeNumber) {
@@ -2400,12 +2981,13 @@ Returns: //
Regs.H.AH = 0x00;
Regs.H.AL = 0x83;
- LegacyBiosInt86 (0x10, &Regs);
-
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
Regs.H.AH = 0x11;
Regs.H.AL = 0x14;
Regs.H.BL = 0;
- LegacyBiosInt86 (0x10, &Regs);
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
break;
case 1:
@@ -2414,11 +2996,12 @@ Returns: //
Regs.H.AH = 0x00;
Regs.H.AL = 0x83;
- LegacyBiosInt86 (0x10, &Regs);
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
+
Regs.H.AH = 0x11;
Regs.H.AL = 0x12;
Regs.H.BL = 0;
- LegacyBiosInt86 (0x10, &Regs);
+ LegacyBiosInt86 (BiosVideoPrivate, 0x10, &Regs);
break;
default:
@@ -2427,222 +3010,3 @@ Returns: return EFI_SUCCESS;
}
-
-VOID
-InitializeBiosIntCaller (
- VOID
- )
-{
- EFI_STATUS Status;
- UINT32 RealModeBufferSize;
- UINT32 ExtraStackSize;
- EFI_PHYSICAL_ADDRESS LegacyRegionBase;
-
- //
- // Get LegacyRegion
- //
- AsmGetThunk16Properties (&RealModeBufferSize, &ExtraStackSize);
-
- LegacyRegionBase = 0x100000;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiACPIMemoryNVS,
- EFI_SIZE_TO_PAGES(RealModeBufferSize + ExtraStackSize + 200),
- &LegacyRegionBase
- );
- ASSERT_EFI_ERROR (Status);
-
- mThunkContext.RealModeBuffer = (VOID*)(UINTN)LegacyRegionBase;
- mThunkContext.RealModeBufferSize = EFI_PAGES_TO_SIZE (RealModeBufferSize);
- mThunkContext.ThunkAttributes = 3;
- AsmPrepareThunk16(&mThunkContext);
-
- //Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **) &mLegacy8259);
- //ASSERT_EFI_ERROR (Status);
-}
-
-VOID
-InitializeInterruptRedirection (
- VOID
- )
-/*++
-
- Routine Description:
- Initialize interrupt redirection code and entries, because
- IDT Vectors 0x68-0x6f must be redirected to IDT Vectors 0x08-0x0f.
- Or the interrupt will lost when we do thunk.
- NOTE: We do not reset 8259 vector base, because it will cause pending
- interrupt lost.
-
- Arguments:
- NONE
-
- Returns:
- NONE
---*/
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS LegacyRegionBase;
- UINTN LegacyRegionLength;
- UINT32 *IdtArray;
- UINTN Index;
- UINT8 ProtectedModeBaseVector;
- UINT32 InterruptRedirectionCode[] = {
- 0x90CF08CD, // INT8; IRET; NOP
- 0x90CF09CD, // INT9; IRET; NOP
- 0x90CF0ACD, // INTA; IRET; NOP
- 0x90CF0BCD, // INTB; IRET; NOP
- 0x90CF0CCD, // INTC; IRET; NOP
- 0x90CF0DCD, // INTD; IRET; NOP
- 0x90CF0ECD, // INTE; IRET; NOP
- 0x90CF0FCD // INTF; IRET; NOP
- };
-
- //
- // Get LegacyRegion
- //
- LegacyRegionLength = sizeof(InterruptRedirectionCode);
- LegacyRegionBase = 0x100000;
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiACPIMemoryNVS,
- EFI_SIZE_TO_PAGES(LegacyRegionLength),
- &LegacyRegionBase
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Copy code to legacy region
- //
- CopyMem ((VOID *)(UINTN)LegacyRegionBase, InterruptRedirectionCode, sizeof (InterruptRedirectionCode));
-
- //
- // Get VectorBase, it should be 0x68
- //
- Status = mLegacy8259->GetVector (mLegacy8259, Efi8259Irq0, &ProtectedModeBaseVector);
- ASSERT_EFI_ERROR (Status);
-
- //
- // Patch IVT 0x68 ~ 0x6f
- //
- IdtArray = (UINT32 *) 0;
- for (Index = 0; Index < 8; Index++) {
- IdtArray[ProtectedModeBaseVector + Index] = ((EFI_SEGMENT (LegacyRegionBase + Index * 4)) << 16) | (EFI_OFFSET (LegacyRegionBase + Index * 4));
- }
-
- return ;
-}
-
-BOOLEAN
-EFIAPI
-LegacyBiosInt86 (
- IN UINT8 BiosInt,
- IN EFI_IA32_REGISTER_SET *Regs
- )
-/*++
-
- Routine Description:
- Thunk to 16-bit real mode and execute a software interrupt with a vector
- of BiosInt. Regs will contain the 16-bit register context on entry and
- exit.
-
- Arguments:
- This - Protocol instance pointer.
- BiosInt - Processor interrupt vector to invoke
- Reg - Register contexted passed into (and returned) from thunk to
- 16-bit mode
-
- Returns:
- FALSE - Thunk completed, and there were no BIOS errors in the target code.
- See Regs for status.
- TRUE - There was a BIOS erro in the target code.
-
---*/
-{
- UINTN Status;
- UINTN Eflags;
- IA32_REGISTER_SET ThunkRegSet;
- BOOLEAN Ret;
- UINT16 *Stack16;
-
- Regs->X.Flags.Reserved1 = 1;
- Regs->X.Flags.Reserved2 = 0;
- Regs->X.Flags.Reserved3 = 0;
- Regs->X.Flags.Reserved4 = 0;
- Regs->X.Flags.IOPL = 3;
- Regs->X.Flags.NT = 0;
- Regs->X.Flags.IF = 1;
- Regs->X.Flags.TF = 0;
- Regs->X.Flags.CF = 0;
-
- ZeroMem (&ThunkRegSet, sizeof (ThunkRegSet));
- ThunkRegSet.E.EDI = Regs->E.EDI;
- ThunkRegSet.E.ESI = Regs->E.ESI;
- ThunkRegSet.E.EBP = Regs->E.EBP;
- ThunkRegSet.E.EBX = Regs->E.EBX;
- ThunkRegSet.E.EDX = Regs->E.EDX;
- ThunkRegSet.E.ECX = Regs->E.ECX;
- ThunkRegSet.E.EAX = Regs->E.EAX;
- ThunkRegSet.E.DS = Regs->E.DS;
- ThunkRegSet.E.ES = Regs->E.ES;
-
- CopyMem (&(ThunkRegSet.E.EFLAGS), &(Regs->E.EFlags), sizeof (UINT32));
-
- //
- // The call to Legacy16 is a critical section to EFI
- //
- Eflags = AsmReadEflags ();
- if ((Eflags | EFI_CPU_EFLAGS_IF) != 0) {
- DisableInterrupts ();
- }
-
- //
- // Set Legacy16 state. 0x08, 0x70 is legacy 8259 vector bases.
- //
- Status = mLegacy8259->SetMode (mLegacy8259, Efi8259LegacyMode, NULL, NULL);
- ASSERT_EFI_ERROR (Status);
-
- Stack16 = (UINT16 *)((UINT8 *) mThunkContext.RealModeBuffer + mThunkContext.RealModeBufferSize - sizeof (UINT16));
- Stack16 -= sizeof (ThunkRegSet.E.EFLAGS) / sizeof (UINT16);
- CopyMem (Stack16, &ThunkRegSet.E.EFLAGS, sizeof (ThunkRegSet.E.EFLAGS));
-
- ThunkRegSet.E.SS = (UINT16) (((UINTN) Stack16 >> 16) << 12);
- ThunkRegSet.E.ESP = (UINT16) (UINTN) Stack16;
- ThunkRegSet.E.Eip = (UINT16)((UINT32 *)NULL)[BiosInt];
- ThunkRegSet.E.CS = (UINT16)(((UINT32 *)NULL)[BiosInt] >> 16);
- mThunkContext.RealModeState = &ThunkRegSet;
- AsmThunk16 (&mThunkContext);
-
- //
- // Restore protected mode interrupt state
- //
- Status = mLegacy8259->SetMode (mLegacy8259, Efi8259ProtectedMode, NULL, NULL);
- ASSERT_EFI_ERROR (Status);
-
- //
- // End critical section
- //
- if ((Eflags | EFI_CPU_EFLAGS_IF) != 0) {
- EnableInterrupts ();
- }
-
- Regs->E.EDI = ThunkRegSet.E.EDI;
- Regs->E.ESI = ThunkRegSet.E.ESI;
- Regs->E.EBP = ThunkRegSet.E.EBP;
- Regs->E.EBX = ThunkRegSet.E.EBX;
- Regs->E.EDX = ThunkRegSet.E.EDX;
- Regs->E.ECX = ThunkRegSet.E.ECX;
- Regs->E.EAX = ThunkRegSet.E.EAX;
- Regs->E.SS = ThunkRegSet.E.SS;
- Regs->E.CS = ThunkRegSet.E.CS;
- Regs->E.DS = ThunkRegSet.E.DS;
- Regs->E.ES = ThunkRegSet.E.ES;
-
- CopyMem (&(Regs->E.EFlags), &(ThunkRegSet.E.EFLAGS), sizeof (UINT32));
-
- Ret = (BOOLEAN) (Regs->E.EFlags.CF == 1);
-
- return Ret;
-}
-
-
diff --git a/DuetPkg/BiosVideoThunkDxe/BiosVideo.h b/DuetPkg/BiosVideoThunkDxe/BiosVideo.h index 2123090..c8a3f3c 100644 --- a/DuetPkg/BiosVideoThunkDxe/BiosVideo.h +++ b/DuetPkg/BiosVideoThunkDxe/BiosVideo.h @@ -11,15 +11,15 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. Module Name:
- BiosVideo.h
+ UefiBiosVideo.h
Abstract:
Revision History
--*/
-#ifndef _BIOS_UGA_H
-#define _BIOS_UGA_H
+#ifndef _BIOS_GRAPHICS_OUTPUT_H
+#define _BIOS_GRAPHICS_OUTPUT_H
#include <Uefi.h>
@@ -34,24 +34,20 @@ Revision History #include <Protocol/UgaDraw.h>
#include <Protocol/VgaMiniPort.h>
#include <Protocol/Legacy8259.h>
+#include <Protocol/EdidActive.h>
+#include <Protocol/EdidDiscovered.h>
+#include <Protocol/DevicePath.h>
#include <Protocol/LegacyBios.h>
#include <Library/UefiLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseMemoryLib.h>
+#include <Library/DevicePathLib.h>
#include <IndustryStandard/Pci22.h>
#include "VesaBiosExtensions.h"
-//
-// Driver Produced Protocol Prototypes
-//
-//#include EFI_PROTOCOL_DEFINITION (DriverBinding)
-//#include EFI_PROTOCOL_DEFINITION (ComponentName)
-//#include EFI_PROTOCOL_DEFINITION (ComponentName2)
-//#include EFI_PROTOCOL_DEFINITION (UgaDraw)
-//#include EFI_PROTOCOL_DEFINITION (VgaMiniPort)
//
// Packed format support: The number of bits reserved for each of the colors and the actual
@@ -63,26 +59,29 @@ typedef struct { } BIOS_VIDEO_COLOR_PLACEMENT;
//
-// BIOS UGA Draw Graphical Mode Data
+// BIOS Graphics Output Graphical Mode Data
//
typedef struct {
UINT16 VbeModeNumber;
UINT16 BytesPerScanLine;
VOID *LinearFrameBuffer;
+ UINTN FrameBufferSize;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
- UINT32 ColorDepth;
UINT32 RefreshRate;
UINT32 BitsPerPixel;
BIOS_VIDEO_COLOR_PLACEMENT Red;
BIOS_VIDEO_COLOR_PLACEMENT Green;
BIOS_VIDEO_COLOR_PLACEMENT Blue;
+ BIOS_VIDEO_COLOR_PLACEMENT Reserved;
+ EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
+ EFI_PIXEL_BITMASK PixelBitMask;
} BIOS_VIDEO_MODE_DATA;
//
-// BIOS UGA Device Structure
+// BIOS video child handle private data Structure
//
-#define BIOS_VIDEO_DEV_SIGNATURE SIGNATURE_32 ('B', 'V', 'M', 'p')
+#define BIOS_VIDEO_DEV_SIGNATURE SIGNATURE_32 ('B', 'V', 'M', 'p')
typedef struct {
UINTN Signature;
@@ -92,30 +91,30 @@ typedef struct { // Consumed Protocols
//
EFI_PCI_IO_PROTOCOL *PciIo;
- //EFI_LEGACY_BIOS_THUNK_PROTOCOL *LegacyBios;
+ EFI_LEGACY_8259_PROTOCOL *Legacy8259;
//
// Produced Protocols
//
- EFI_UGA_DRAW_PROTOCOL UgaDraw;
+ EFI_GRAPHICS_OUTPUT_PROTOCOL GraphicsOutput;
+ EFI_EDID_DISCOVERED_PROTOCOL EdidDiscovered;
+ EFI_EDID_ACTIVE_PROTOCOL EdidActive;
EFI_VGA_MINI_PORT_PROTOCOL VgaMiniPort;
//
// General fields
//
- EFI_EVENT ExitBootServicesEvent;
BOOLEAN VgaCompatible;
- BOOLEAN ProduceUgaDraw;
+ BOOLEAN ProduceGraphicsOutput;
+ EFI_EVENT ExitBootServicesEvent;
//
- // UGA Draw related fields
+ // Graphics Output Protocol related fields
//
BOOLEAN HardwareNeedsStarting;
- UINTN CurrentMode;
- UINTN MaxMode;
BIOS_VIDEO_MODE_DATA *ModeData;
UINT8 *LineBuffer;
- EFI_UGA_PIXEL *VbeFrameBuffer;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL *VbeFrameBuffer;
UINT8 *VgaFrameBuffer;
//
@@ -125,6 +124,7 @@ typedef struct { EFI_PHYSICAL_ADDRESS PagesBelow1MB; // Buffer for all VBE Information Blocks
VESA_BIOS_EXTENSIONS_INFORMATION_BLOCK *VbeInformationBlock; // 0x200 bytes. Must be allocated below 1MB
VESA_BIOS_EXTENSIONS_MODE_INFORMATION_BLOCK *VbeModeInformationBlock; // 0x100 bytes. Must be allocated below 1MB
+ VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK *VbeEdidDataBlock; // 0x80 bytes. Must be allocated below 1MB
VESA_BIOS_EXTENSIONS_CRTC_INFORMATION_BLOCK *VbeCrtcInformationBlock; // 59 bytes. Must be allocated below 1MB
UINTN VbeSaveRestorePages; // Number of 4KB pages in VbeSaveRestoreBuffer
EFI_PHYSICAL_ADDRESS VbeSaveRestoreBuffer; // Must be allocated below 1MB
@@ -134,10 +134,12 @@ typedef struct { EFI_DEVICE_PATH_PROTOCOL *DevicePath;
} BIOS_VIDEO_DEV;
-#define BIOS_VIDEO_DEV_FROM_UGA_DRAW_THIS(a) CR (a, BIOS_VIDEO_DEV, UgaDraw, BIOS_VIDEO_DEV_SIGNATURE)
-
+#define BIOS_VIDEO_DEV_FROM_PCI_IO_THIS(a) CR (a, BIOS_VIDEO_DEV, PciIo, BIOS_VIDEO_DEV_SIGNATURE)
+#define BIOS_VIDEO_DEV_FROM_GRAPHICS_OUTPUT_THIS(a) CR (a, BIOS_VIDEO_DEV, GraphicsOutput, BIOS_VIDEO_DEV_SIGNATURE)
#define BIOS_VIDEO_DEV_FROM_VGA_MINI_PORT_THIS(a) CR (a, BIOS_VIDEO_DEV, VgaMiniPort, BIOS_VIDEO_DEV_SIGNATURE)
+#define GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER 0xffff
+
//
// Global Variables
//
@@ -156,23 +158,21 @@ BiosVideoDriverBindingSupported ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
-
- Routine Description:
- Supported.
-
- Arguments:
+Routine Description:
- This - Pointer to driver binding protocol
- Controller - Controller handle to connect
- RemainingDevicePath - A pointer to the remaining portion of a device path
-
-
- Returns:
+ GC_TODO: Add function description
+
+Arguments:
+
+ This - GC_TODO: add argument description
+ Controller - GC_TODO: add argument description
+ RemainingDevicePath - GC_TODO: add argument description
+
+Returns:
+
+ GC_TODO: add return values
- EFI_STATUS - EFI_SUCCESS:This controller can be managed by this driver,
- Otherwise, this controller cannot be managed by this driver
-
--*/
;
@@ -184,21 +184,21 @@ BiosVideoDriverBindingStart ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
-
- Routine Description:
- Install UGA Draw Protocol onto VGA device handles
-
- Arguments:
+Routine Description:
- This - Pointer to driver binding protocol
- Controller - Controller handle to connect
- RemainingDevicePath - A pointer to the remaining portion of a device path
-
- Returns:
+ GC_TODO: Add function description
+
+Arguments:
+
+ This - GC_TODO: add argument description
+ Controller - GC_TODO: add argument description
+ RemainingDevicePath - GC_TODO: add argument description
+
+Returns:
+
+ GC_TODO: add return values
- EFI_STATUS
-
--*/
;
@@ -211,23 +211,22 @@ BiosVideoDriverBindingStop ( IN EFI_HANDLE *ChildHandleBuffer
)
/*++
-
- Routine Description:
- Stop.
-
- Arguments:
+Routine Description:
- This - Pointer to driver binding protocol
- Controller - Controller handle to connect
- NumberOfChilren - Number of children handle created by this driver
- ChildHandleBuffer - Buffer containing child handle created
-
- Returns:
+ GC_TODO: Add function description
+
+Arguments:
+
+ This - GC_TODO: add argument description
+ Controller - GC_TODO: add argument description
+ NumberOfChildren - GC_TODO: add argument description
+ ChildHandleBuffer - GC_TODO: add argument description
+
+Returns:
+
+ GC_TODO: add return values
- EFI_SUCCESS - Driver disconnected successfully from controller
- EFI_UNSUPPORTED - Cannot find BIOS_VIDEO_DEV structure
-
--*/
;
@@ -239,19 +238,19 @@ BiosVideoCheckForVbe ( BIOS_VIDEO_DEV *BiosVideoPrivate
)
/*++
-
- Routine Description:
- Check for VBE device
-
- Arguments:
-
- BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure
-
- Returns:
-
- EFI_SUCCESS - VBE device found
-
+Routine Description:
+
+ GC_TODO: Add function description
+
+Arguments:
+
+ BiosVideoPrivate - GC_TODO: add argument description
+
+Returns:
+
+ GC_TODO: add return values
+
--*/
;
@@ -260,112 +259,148 @@ BiosVideoCheckForVga ( BIOS_VIDEO_DEV *BiosVideoPrivate
)
/*++
-
- Routine Description:
- Check for VGA device
-
- Arguments:
-
- BiosVideoPrivate - Pointer to BIOS_VIDEO_DEV structure
-
- Returns:
-
- EFI_SUCCESS - Standard VGA device found
-
+Routine Description:
+
+ GC_TODO: Add function description
+
+Arguments:
+
+ BiosVideoPrivate - GC_TODO: add argument description
+
+Returns:
+
+ GC_TODO: add return values
+
--*/
;
-//
-// BIOS UGA Draw Protocol functions
-//
+STATIC
EFI_STATUS
-EFIAPI
-BiosVideoUgaDrawGetMode (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- OUT UINT32 *HorizontalResolution,
- OUT UINT32 *VerticalResolution,
- OUT UINT32 *ColorDepth,
- OUT UINT32 *RefreshRate
+DeRegisterVideoChildHandle (
+ EFI_DRIVER_BINDING_PROTOCOL *This,
+ EFI_HANDLE Controller,
+ EFI_HANDLE Handle
)
/*++
Routine Description:
- UGA protocol interface to get video mode
+ Deregister an video child handle and free resources
Arguments:
- This - Pointer to UGA draw protocol instance
- HorizontalResolution - Horizontal Resolution, in pixels
- VerticalResolution - Vertical Resolution, in pixels
- ColorDepth - Bit number used to represent color value of a pixel
- RefreshRate - Refresh rate, in Hertz
+ This - Protocol instance pointer.
+ Controller - Video controller handle
+ Handle - Video child handle
Returns:
- EFI_DEVICE_ERROR - Hardware need starting
- EFI_INVALID_PARAMETER - Invalid parameter passed in
- EFI_SUCCESS - Video mode query successfully
+ EFI_STATUS
--*/
;
+VOID
+BiosVideoDeviceReleaseResource (
+ BIOS_VIDEO_DEV *BiosVideoChildPrivate
+ )
+/*++
+Routing Description:
+
+ Release resources of a video child device before stopping it.
+
+Arguments:
+
+ BiosVideoChildPrivate - Video child device private data structure
+
+Returns:
+
+ NONE
+
+---*/
+;
+
+//
+// BIOS Graphics Output Protocol functions
+//
EFI_STATUS
EFIAPI
-BiosVideoUgaDrawSetMode (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- IN UINT32 HorizontalResolution,
- IN UINT32 VerticalResolution,
- IN UINT32 ColorDepth,
- IN UINT32 RefreshRate
+BiosVideoGraphicsOutputQueryMode (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN UINT32 ModeNumber,
+ OUT UINTN *SizeOfInfo,
+ OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
)
/*++
Routine Description:
- UGA draw protocol interface to set video mode
+ Graphics Output protocol interface to get video mode
-Arguments:
+ Arguments:
+ This - Protocol instance pointer.
+ ModeNumber - The mode number to return information on.
+ Info - Caller allocated buffer that returns information about ModeNumber.
+ SizeOfInfo - A pointer to the size, in bytes, of the Info buffer.
- This - Pointer to UGA draw protocol instance
- HorizontalResolution - Horizontal Resolution, in pixels
- VerticalResolution - Vertical Resolution, in pixels
- ColorDepth - Bit number used to represent color value of a pixel
- RefreshRate - Refresh rate, in Hertz
+ Returns:
+ EFI_SUCCESS - Mode information returned.
+ EFI_BUFFER_TOO_SMALL - The Info buffer was too small.
+ EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.
+ EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
+ EFI_INVALID_PARAMETER - One of the input args was NULL.
-Returns:
+--*/
+;
+
+EFI_STATUS
+EFIAPI
+BiosVideoGraphicsOutputSetMode (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
+ IN UINT32 ModeNumber
+ )
+/*++
- EFI_DEVICE_ERROR - Device error
- EFI_SUCCESS - Video mode set successfully
- EFI_UNSUPPORTED - Cannot support this video mode
+Routine Description:
+
+ Graphics Output protocol interface to set video mode
+
+ Arguments:
+ This - Protocol instance pointer.
+ ModeNumber - The mode number to be set.
+
+ Returns:
+ EFI_SUCCESS - Graphics mode was changed.
+ EFI_DEVICE_ERROR - The device had an error and could not complete the request.
+ EFI_UNSUPPORTED - ModeNumber is not supported by this device.
--*/
;
EFI_STATUS
EFIAPI
-BiosVideoUgaDrawVbeBlt (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL
- IN EFI_UGA_BLT_OPERATION BltOperation,
- IN UINTN SourceX,
- IN UINTN SourceY,
- IN UINTN DestinationX,
- IN UINTN DestinationY,
- IN UINTN Width,
- IN UINTN Height,
- IN UINTN Delta
+BiosVideoGraphicsOutputVbeBlt (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
+ IN UINTN SourceX,
+ IN UINTN SourceY,
+ IN UINTN DestinationX,
+ IN UINTN DestinationY,
+ IN UINTN Width,
+ IN UINTN Height,
+ IN UINTN Delta
)
/*++
Routine Description:
- UGA draw protocol instance to block transfer for VBE device
+ Graphics Output protocol instance to block transfer for VBE device
Arguments:
- This - Pointer to UGA draw protocol instance
+ This - Pointer to Graphics Output protocol instance
BltBuffer - The data to transfer to screen
BltOperation - The operation to perform
SourceX - The X coordinate of the source for BltOperation
@@ -374,9 +409,9 @@ Arguments: DestinationY - The Y coordinate of the destination for BltOperation
Width - The width of a rectangle in the blt rectangle in pixels
Height - The height of a rectangle in the blt rectangle in pixels
- Delta - Not used for EfiUgaVideoFill and EfiUgaVideoToVideo operation.
+ Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.
If a Delta of 0 is used, the entire BltBuffer will be operated on.
- If a subrectangle of the BltBuffer is used, then Delta represents
+ If a subrectangle of the BltBuffer is used, then Delta represents
the number of bytes in a row of the BltBuffer.
Returns:
@@ -389,27 +424,27 @@ Returns: EFI_STATUS
EFIAPI
-BiosVideoUgaDrawVgaBlt (
- IN EFI_UGA_DRAW_PROTOCOL *This,
- IN EFI_UGA_PIXEL *BltBuffer, OPTIONAL
- IN EFI_UGA_BLT_OPERATION BltOperation,
- IN UINTN SourceX,
- IN UINTN SourceY,
- IN UINTN DestinationX,
- IN UINTN DestinationY,
- IN UINTN Width,
- IN UINTN Height,
- IN UINTN Delta
+BiosVideoGraphicsOutputVgaBlt (
+ IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
+ IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
+ IN UINTN SourceX,
+ IN UINTN SourceY,
+ IN UINTN DestinationX,
+ IN UINTN DestinationY,
+ IN UINTN Width,
+ IN UINTN Height,
+ IN UINTN Delta
)
/*++
Routine Description:
- UGA draw protocol instance to block transfer for VGA device
+ Grahpics Output protocol instance to block transfer for VGA device
Arguments:
- This - Pointer to UGA draw protocol instance
+ This - Pointer to Grahpics Output protocol instance
BltBuffer - The data to transfer to screen
BltOperation - The operation to perform
SourceX - The X coordinate of the source for BltOperation
@@ -418,9 +453,9 @@ Arguments: DestinationY - The Y coordinate of the destination for BltOperation
Width - The width of a rectangle in the blt rectangle in pixels
Height - The height of a rectangle in the blt rectangle in pixels
- Delta - Not used for EfiUgaVideoFill and EfiUgaVideoToVideo operation.
+ Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.
If a Delta of 0 is used, the entire BltBuffer will be operated on.
- If a subrectangle of the BltBuffer is used, then Delta represents
+ If a subrectangle of the BltBuffer is used, then Delta represents
the number of bytes in a row of the BltBuffer.
Returns:
@@ -508,4 +543,22 @@ BiosVideoIsVga ( #define VGA_GRAPHICS_CONTROLLER_BIT_MASK_REGISTER 0x08
+VOID
+InitializeBiosIntCaller (
+ IN BIOS_VIDEO_DEV *BiosDev
+ );
+
+VOID
+InitializeInterruptRedirection (
+ IN BIOS_VIDEO_DEV *BiosDev
+ );
+
+BOOLEAN
+EFIAPI
+LegacyBiosInt86 (
+ IN BIOS_VIDEO_DEV *BiosDev,
+ IN UINT8 BiosInt,
+ IN EFI_IA32_REGISTER_SET *Regs
+ );
+
#endif
diff --git a/DuetPkg/BiosVideoThunkDxe/BiosVideo.inf b/DuetPkg/BiosVideoThunkDxe/BiosVideo.inf index d8ac37f..93db736 100644 --- a/DuetPkg/BiosVideoThunkDxe/BiosVideo.inf +++ b/DuetPkg/BiosVideoThunkDxe/BiosVideo.inf @@ -39,14 +39,18 @@ UefiBootServicesTableLib
BaseMemoryLib
UefiDriverEntryPoint
+ DevicePathLib
[Sources.common]
BiosVideo.h
BiosVideo.c
ComponentName.c
VesaBiosExtensions.h
-
+ LegacyBiosThunk.c
+
[Protocols]
gEfiPciIoProtocolGuid
gEfiVgaMiniPortProtocolGuid
gEfiLegacy8259ProtocolGuid
+ gEfiEdidDiscoveredProtocolGuid
+ gEfiEdidActiveProtocolGuid
\ No newline at end of file diff --git a/DuetPkg/BiosVideoThunkDxe/LegacyBiosThunk.c b/DuetPkg/BiosVideoThunkDxe/LegacyBiosThunk.c new file mode 100644 index 0000000..1f39066 --- /dev/null +++ b/DuetPkg/BiosVideoThunkDxe/LegacyBiosThunk.c @@ -0,0 +1,224 @@ +
+#include "BiosVideo.h"
+
+#define EFI_CPU_EFLAGS_IF 0x200
+
+THUNK_CONTEXT mThunkContext;
+
+VOID
+InitializeBiosIntCaller (
+ IN BIOS_VIDEO_DEV *BiosDev
+ )
+{
+ EFI_STATUS Status;
+ UINT32 RealModeBufferSize;
+ UINT32 ExtraStackSize;
+ EFI_PHYSICAL_ADDRESS LegacyRegionBase;
+
+ //
+ // Get LegacyRegion
+ //
+ AsmGetThunk16Properties (&RealModeBufferSize, &ExtraStackSize);
+
+ LegacyRegionBase = 0x100000;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiACPIMemoryNVS,
+ EFI_SIZE_TO_PAGES(RealModeBufferSize + ExtraStackSize + 200),
+ &LegacyRegionBase
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ mThunkContext.RealModeBuffer = (VOID*)(UINTN)LegacyRegionBase;
+ mThunkContext.RealModeBufferSize = EFI_PAGES_TO_SIZE (RealModeBufferSize);
+ mThunkContext.ThunkAttributes = 3;
+ AsmPrepareThunk16(&mThunkContext);
+
+}
+
+VOID
+InitializeInterruptRedirection (
+ IN BIOS_VIDEO_DEV *BiosDev
+ )
+/*++
+
+ Routine Description:
+ Initialize interrupt redirection code and entries, because
+ IDT Vectors 0x68-0x6f must be redirected to IDT Vectors 0x08-0x0f.
+ Or the interrupt will lost when we do thunk.
+ NOTE: We do not reset 8259 vector base, because it will cause pending
+ interrupt lost.
+
+ Arguments:
+ NONE
+
+ Returns:
+ NONE
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PHYSICAL_ADDRESS LegacyRegionBase;
+ UINTN LegacyRegionLength;
+ UINT32 *IdtArray;
+ UINTN Index;
+ UINT8 ProtectedModeBaseVector;
+ UINT32 InterruptRedirectionCode[] = {
+ 0x90CF08CD, // INT8; IRET; NOP
+ 0x90CF09CD, // INT9; IRET; NOP
+ 0x90CF0ACD, // INTA; IRET; NOP
+ 0x90CF0BCD, // INTB; IRET; NOP
+ 0x90CF0CCD, // INTC; IRET; NOP
+ 0x90CF0DCD, // INTD; IRET; NOP
+ 0x90CF0ECD, // INTE; IRET; NOP
+ 0x90CF0FCD // INTF; IRET; NOP
+ };
+
+ //
+ // Get LegacyRegion
+ //
+ LegacyRegionLength = sizeof(InterruptRedirectionCode);
+ LegacyRegionBase = 0x100000;
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiACPIMemoryNVS,
+ EFI_SIZE_TO_PAGES(LegacyRegionLength),
+ &LegacyRegionBase
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Copy code to legacy region
+ //
+ CopyMem ((VOID *)(UINTN)LegacyRegionBase, InterruptRedirectionCode, sizeof (InterruptRedirectionCode));
+
+ //
+ // Get VectorBase, it should be 0x68
+ //
+ Status = BiosDev->Legacy8259->GetVector (BiosDev->Legacy8259, Efi8259Irq0, &ProtectedModeBaseVector);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Patch IVT 0x68 ~ 0x6f
+ //
+ IdtArray = (UINT32 *) 0;
+ for (Index = 0; Index < 8; Index++) {
+ IdtArray[ProtectedModeBaseVector + Index] = ((EFI_SEGMENT (LegacyRegionBase + Index * 4)) << 16) | (EFI_OFFSET (LegacyRegionBase + Index * 4));
+ }
+
+ return ;
+}
+
+BOOLEAN
+EFIAPI
+LegacyBiosInt86 (
+ IN BIOS_VIDEO_DEV *BiosDev,
+ IN UINT8 BiosInt,
+ IN EFI_IA32_REGISTER_SET *Regs
+ )
+/*++
+
+ Routine Description:
+ Thunk to 16-bit real mode and execute a software interrupt with a vector
+ of BiosInt. Regs will contain the 16-bit register context on entry and
+ exit.
+
+ Arguments:
+ This - Protocol instance pointer.
+ BiosInt - Processor interrupt vector to invoke
+ Reg - Register contexted passed into (and returned) from thunk to
+ 16-bit mode
+
+ Returns:
+ FALSE - Thunk completed, and there were no BIOS errors in the target code.
+ See Regs for status.
+ TRUE - There was a BIOS erro in the target code.
+
+--*/
+{
+ UINTN Status;
+ UINTN Eflags;
+ IA32_REGISTER_SET ThunkRegSet;
+ BOOLEAN Ret;
+ UINT16 *Stack16;
+
+ Regs->X.Flags.Reserved1 = 1;
+ Regs->X.Flags.Reserved2 = 0;
+ Regs->X.Flags.Reserved3 = 0;
+ Regs->X.Flags.Reserved4 = 0;
+ Regs->X.Flags.IOPL = 3;
+ Regs->X.Flags.NT = 0;
+ Regs->X.Flags.IF = 1;
+ Regs->X.Flags.TF = 0;
+ Regs->X.Flags.CF = 0;
+
+ ZeroMem (&ThunkRegSet, sizeof (ThunkRegSet));
+ ThunkRegSet.E.EDI = Regs->E.EDI;
+ ThunkRegSet.E.ESI = Regs->E.ESI;
+ ThunkRegSet.E.EBP = Regs->E.EBP;
+ ThunkRegSet.E.EBX = Regs->E.EBX;
+ ThunkRegSet.E.EDX = Regs->E.EDX;
+ ThunkRegSet.E.ECX = Regs->E.ECX;
+ ThunkRegSet.E.EAX = Regs->E.EAX;
+ ThunkRegSet.E.DS = Regs->E.DS;
+ ThunkRegSet.E.ES = Regs->E.ES;
+
+ CopyMem (&(ThunkRegSet.E.EFLAGS), &(Regs->E.EFlags), sizeof (UINT32));
+
+ //
+ // The call to Legacy16 is a critical section to EFI
+ //
+ Eflags = AsmReadEflags ();
+ if ((Eflags | EFI_CPU_EFLAGS_IF) != 0) {
+ DisableInterrupts ();
+ }
+
+ //
+ // Set Legacy16 state. 0x08, 0x70 is legacy 8259 vector bases.
+ //
+ Status = BiosDev->Legacy8259->SetMode (BiosDev->Legacy8259, Efi8259LegacyMode, NULL, NULL);
+ ASSERT_EFI_ERROR (Status);
+
+ Stack16 = (UINT16 *)((UINT8 *) mThunkContext.RealModeBuffer + mThunkContext.RealModeBufferSize - sizeof (UINT16));
+ Stack16 -= sizeof (ThunkRegSet.E.EFLAGS) / sizeof (UINT16);
+ CopyMem (Stack16, &ThunkRegSet.E.EFLAGS, sizeof (ThunkRegSet.E.EFLAGS));
+
+ ThunkRegSet.E.SS = (UINT16) (((UINTN) Stack16 >> 16) << 12);
+ ThunkRegSet.E.ESP = (UINT16) (UINTN) Stack16;
+ ThunkRegSet.E.Eip = (UINT16)((UINT32 *)NULL)[BiosInt];
+ ThunkRegSet.E.CS = (UINT16)(((UINT32 *)NULL)[BiosInt] >> 16);
+ mThunkContext.RealModeState = &ThunkRegSet;
+ AsmThunk16 (&mThunkContext);
+
+ //
+ // Restore protected mode interrupt state
+ //
+ Status = BiosDev->Legacy8259->SetMode (BiosDev->Legacy8259, Efi8259ProtectedMode, NULL, NULL);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // End critical section
+ //
+ if ((Eflags | EFI_CPU_EFLAGS_IF) != 0) {
+ EnableInterrupts ();
+ }
+
+ Regs->E.EDI = ThunkRegSet.E.EDI;
+ Regs->E.ESI = ThunkRegSet.E.ESI;
+ Regs->E.EBP = ThunkRegSet.E.EBP;
+ Regs->E.EBX = ThunkRegSet.E.EBX;
+ Regs->E.EDX = ThunkRegSet.E.EDX;
+ Regs->E.ECX = ThunkRegSet.E.ECX;
+ Regs->E.EAX = ThunkRegSet.E.EAX;
+ Regs->E.SS = ThunkRegSet.E.SS;
+ Regs->E.CS = ThunkRegSet.E.CS;
+ Regs->E.DS = ThunkRegSet.E.DS;
+ Regs->E.ES = ThunkRegSet.E.ES;
+
+ CopyMem (&(Regs->E.EFlags), &(ThunkRegSet.E.EFLAGS), sizeof (UINT32));
+
+ Ret = (BOOLEAN) (Regs->E.EFlags.CF == 1);
+
+ return Ret;
+}
+
+
|