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ArmPlatformPkg: Tidy Lcd code: Coding standard 

There is no functional modification in this change
As preparation for further work, the formatting is corrected to meet
the EDKII coding standard.
Of specific note, some invalid include guards were fixed.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Girish Pathak 2017-09-26 21:15:11 +01:00 committed by Leif Lindholm
parent e10c79145e
commit b1b69d2606
6 changed files with 208 additions and 176 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

187
ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.c
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -9,7 +9,7 @@
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
**/
#include <PiDxe.h>
#include <Library/BaseMemoryLib.h>
@ -22,12 +22,10 @@
#include "LcdGraphicsOutputDxe.h"
/**********************************************************************
*
* This file implements the Graphics Output protocol on ArmVersatileExpress
* using the Lcd controller
*
**********************************************************************/
/** This file implements the Graphics Output protocol on ArmVersatileExpress
using the Lcd controller
**/
//
// Global variables
@ -64,7 +62,10 @@ LCD_INSTANCE mLcdTemplate = {
{
{
HARDWARE_DEVICE_PATH, HW_VENDOR_DP,
{ (UINT8) (sizeof(VENDOR_DEVICE_PATH)), (UINT8) ((sizeof(VENDOR_DEVICE_PATH)) >> 8) },
{
(UINT8)(sizeof (VENDOR_DEVICE_PATH)),
(UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
},
},
// Hardware Device Path for Lcd
EFI_CALLER_ID_GUID // Use the driver's GUID
@ -73,10 +74,13 @@ LCD_INSTANCE mLcdTemplate = {
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{ sizeof(EFI_DEVICE_PATH_PROTOCOL), 0 }
{
sizeof (EFI_DEVICE_PATH_PROTOCOL),
0
}
}
},
(EFI_EVENT) NULL // ExitBootServicesEvent
(EFI_EVENT)NULL // ExitBootServicesEvent
};
EFI_STATUS
@ -86,7 +90,7 @@ LcdInstanceContructor (
{
LCD_INSTANCE* Instance;
Instance = AllocateCopyPool (sizeof(LCD_INSTANCE), &mLcdTemplate);
Instance = AllocateCopyPool (sizeof (LCD_INSTANCE), &mLcdTemplate);
if (Instance == NULL) {
return EFI_OUT_OF_RESOURCES;
}
@ -113,23 +117,23 @@ InitializeDisplay (
UINTN VramSize;
Status = LcdPlatformGetVram (&VramBaseAddress, &VramSize);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
return Status;
}
// Setup the LCD
Status = LcdInitialize (VramBaseAddress);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
goto EXIT_ERROR_LCD_SHUTDOWN;
}
Status = LcdPlatformInitializeDisplay (Instance->Handle);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
goto EXIT_ERROR_LCD_SHUTDOWN;
}
// Setup all the relevant mode information
Instance->Gop.Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
Instance->Gop.Mode->SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
Instance->Gop.Mode->FrameBufferBase = VramBaseAddress;
// Set the flag before changing the mode, to avoid infinite loops
@ -139,7 +143,8 @@ InitializeDisplay (
goto EXIT;
EXIT_ERROR_LCD_SHUTDOWN:
DEBUG((DEBUG_ERROR, "InitializeDisplay: ERROR - Can not initialise the display. Exit Status=%r\n", Status));
DEBUG ((DEBUG_ERROR, "InitializeDisplay: ERROR - Can not initialise the display. Exit Status=%r\n", Status));
LcdShutdown ();
EXIT:
@ -157,40 +162,44 @@ LcdGraphicsOutputDxeInitialize (
LCD_INSTANCE* Instance;
Status = LcdIdentify ();
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
goto EXIT;
}
Status = LcdInstanceContructor (&Instance);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
goto EXIT;
}
// Install the Graphics Output Protocol and the Device Path
Status = gBS->InstallMultipleProtocolInterfaces(
&Instance->Handle,
&gEfiGraphicsOutputProtocolGuid, &Instance->Gop,
&gEfiDevicePathProtocolGuid, &Instance->DevicePath,
NULL
);
Status = gBS->InstallMultipleProtocolInterfaces (
&Instance->Handle,
&gEfiGraphicsOutputProtocolGuid,
&Instance->Gop,
&gEfiDevicePathProtocolGuid,
&Instance->DevicePath,
NULL
);
if (EFI_ERROR(Status)) {
DEBUG((DEBUG_ERROR, "GraphicsOutputDxeInitialize: Can not install the protocol. Exit Status=%r\n", Status));
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "LcdGraphicsOutputDxeInitialize: Can not install the protocol. Exit Status=%r\n", Status));
goto EXIT;
}
// Register for an ExitBootServicesEvent
// When ExitBootServices starts, this function here will make sure that the graphics driver will shut down properly,
// i.e. it will free up all allocated memory and perform any necessary hardware re-configuration.
// When ExitBootServices starts, this function will make sure that the
// graphics driver shuts down properly, i.e. it will free up all
// allocated memory and perform any necessary hardware re-configuration.
Status = gBS->CreateEvent (
EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_NOTIFY,
LcdGraphicsExitBootServicesEvent, NULL,
&Instance->ExitBootServicesEvent
);
EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_NOTIFY,
LcdGraphicsExitBootServicesEvent,
NULL,
&Instance->ExitBootServicesEvent
);
if (EFI_ERROR(Status)) {
DEBUG((DEBUG_ERROR, "GraphicsOutputDxeInitialize: Can not install the ExitBootServicesEvent handler. Exit Status=%r\n", Status));
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "LcdGraphicsOutputDxeInitialize: Can not install the ExitBootServicesEvent handler. Exit Status=%r\n", Status));
goto EXIT_ERROR_UNINSTALL_PROTOCOL;
}
@ -198,48 +207,46 @@ LcdGraphicsOutputDxeInitialize (
goto EXIT;
EXIT_ERROR_UNINSTALL_PROTOCOL:
/* The following function could return an error message,
* however, to get here something must have gone wrong already,
* so preserve the original error, i.e. don't change
* the Status variable, even it fails to uninstall the protocol.
*/
// The following function could return an error message,
// however, to get here something must have gone wrong already,
// so preserve the original error, i.e. don't change
// the Status variable, even it fails to uninstall the protocol.
gBS->UninstallMultipleProtocolInterfaces (
Instance->Handle,
&gEfiGraphicsOutputProtocolGuid, &Instance->Gop, // Uninstall Graphics Output protocol
&gEfiDevicePathProtocolGuid, &Instance->DevicePath, // Uninstall device path
NULL
);
Instance->Handle,
&gEfiGraphicsOutputProtocolGuid,
&Instance->Gop, // Uninstall Graphics Output protocol
&gEfiDevicePathProtocolGuid,
&Instance->DevicePath, // Uninstall device path
NULL
);
EXIT:
return Status;
}
/***************************************
* This function should be called
* on Event: ExitBootServices
* to free up memory, stop the driver
* and uninstall the protocols
***************************************/
/** This function should be called
on Event: ExitBootServices
to free up memory, stop the driver
and uninstall the protocols
**/
VOID
LcdGraphicsExitBootServicesEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
{
// By default, this PCD is FALSE. But if a platform starts a predefined OS that
// does not use a framebuffer then we might want to disable the display controller
// to avoid to display corrupted information on the screen.
// By default, this PCD is FALSE. But if a platform starts a predefined OS
// that does not use a framebuffer then we might want to disable the display
// controller to avoid to display corrupted information on the screen.
if (FeaturePcdGet (PcdGopDisableOnExitBootServices)) {
// Turn-off the Display controller
LcdShutdown ();
}
}
/***************************************
* GraphicsOutput Protocol function, mapping to
* EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode
***************************************/
/** GraphicsOutput Protocol function, mapping to
EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode
**/
EFI_STATUS
EFIAPI
LcdGraphicsQueryMode (
@ -252,19 +259,22 @@ LcdGraphicsQueryMode (
EFI_STATUS Status = EFI_SUCCESS;
LCD_INSTANCE *Instance;
Instance = LCD_INSTANCE_FROM_GOP_THIS(This);
Instance = LCD_INSTANCE_FROM_GOP_THIS (This);
// Setup the hardware if not already done
if( !mDisplayInitialized ) {
Status = InitializeDisplay(Instance);
if (EFI_ERROR(Status)) {
if (!mDisplayInitialized) {
Status = InitializeDisplay (Instance);
if (EFI_ERROR (Status)) {
goto EXIT;
}
}
// Error checking
if ( (This == NULL) || (Info == NULL) || (SizeOfInfo == NULL) || (ModeNumber >= This->Mode->MaxMode) ) {
DEBUG((DEBUG_ERROR, "LcdGraphicsQueryMode: ERROR - For mode number %d : Invalid Parameter.\n", ModeNumber ));
if ((This == NULL) ||
(Info == NULL) ||
(SizeOfInfo == NULL) ||
(ModeNumber >= This->Mode->MaxMode)) {
DEBUG ((DEBUG_ERROR, "LcdGraphicsQueryMode: ERROR - For mode number %d : Invalid Parameter.\n", ModeNumber));
Status = EFI_INVALID_PARAMETER;
goto EXIT;
}
@ -275,21 +285,20 @@ LcdGraphicsQueryMode (
goto EXIT;
}
*SizeOfInfo = sizeof( EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
*SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
Status = LcdPlatformQueryMode (ModeNumber,*Info);
if (EFI_ERROR(Status)) {
FreePool(*Info);
Status = LcdPlatformQueryMode (ModeNumber, *Info);
if (EFI_ERROR (Status)) {
FreePool (*Info);
}
EXIT:
return Status;
}
/***************************************
* GraphicsOutput Protocol function, mapping to
* EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode
***************************************/
/** GraphicsOutput Protocol function, mapping to
EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode
**/
EFI_STATUS
EFIAPI
LcdGraphicsSetMode (
@ -305,47 +314,48 @@ LcdGraphicsSetMode (
Instance = LCD_INSTANCE_FROM_GOP_THIS (This);
// Setup the hardware if not already done
if(!mDisplayInitialized) {
if (!mDisplayInitialized) {
Status = InitializeDisplay (Instance);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
goto EXIT;
}
}
// Check if this mode is supported
if( ModeNumber >= This->Mode->MaxMode ) {
DEBUG((DEBUG_ERROR, "LcdGraphicsSetMode: ERROR - Unsupported mode number %d .\n", ModeNumber ));
if (ModeNumber >= This->Mode->MaxMode) {
DEBUG ((DEBUG_ERROR, "LcdGraphicsSetMode: ERROR - Unsupported mode number %d .\n", ModeNumber));
Status = EFI_UNSUPPORTED;
goto EXIT;
}
// Set the oscillator frequency to support the new mode
Status = LcdPlatformSetMode (ModeNumber);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto EXIT;
}
// Update the UEFI mode information
This->Mode->Mode = ModeNumber;
LcdPlatformQueryMode (ModeNumber,&Instance->ModeInfo);
Status = LcdPlatformGetBpp(ModeNumber, &Bpp);
if (EFI_ERROR(Status)) {
LcdPlatformQueryMode (ModeNumber, &Instance->ModeInfo);
Status = LcdPlatformGetBpp (ModeNumber, &Bpp);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "LcdGraphicsSetMode: ERROR - Couldn't get bytes per pixel, status: %r\n", Status));
goto EXIT;
}
This->Mode->FrameBufferSize = Instance->ModeInfo.VerticalResolution
* Instance->ModeInfo.PixelsPerScanLine
* GetBytesPerPixel(Bpp);
* Instance->ModeInfo.PixelsPerScanLine
* GetBytesPerPixel (Bpp);
// Set the hardware to the new mode
Status = LcdSetMode (ModeNumber);
if (EFI_ERROR(Status)) {
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto EXIT;
}
// The UEFI spec requires that we now clear the visible portions of the output display to black.
// The UEFI spec requires that we now clear the visible portions of the
// output display to black.
// Set the fill colour to black
SetMem (&FillColour, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0x0);
@ -361,7 +371,8 @@ LcdGraphicsSetMode (
0,
This->Mode->Info->HorizontalResolution,
This->Mode->Info->VerticalResolution,
0);
0
);
EXIT:
return Status;
@ -372,7 +383,7 @@ GetBytesPerPixel (
IN LCD_BPP Bpp
)
{
switch(Bpp) {
switch (Bpp) {
case LCD_BITS_PER_PIXEL_24:
return 4;

10
ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.h
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -11,9 +11,8 @@
**/
#ifndef __ARM_VE_GRAPHICS_DXE_H__
#define __ARM_VE_GRAPHICS_DXE_H__
#ifndef LCD_GRAPHICS_OUTPUT_DXE_H_
#define LCD_GRAPHICS_OUTPUT_DXE_H_
#include <Base.h>
@ -25,7 +24,6 @@
#include <Protocol/DevicePath.h>
//
// Device structures
//
@ -106,4 +104,4 @@ InitializeDisplay (
IN LCD_INSTANCE* Instance
);
#endif /* __ARM_VE_GRAPHICS_DXE_H__ */
#endif /* LCD_GRAPHICS_OUTPUT_DXE_H_ */

14
ArmPlatformPkg/Include/Library/LcdPlatformLib.h
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -11,8 +11,8 @@
**/
#ifndef __LCDPLATFORMLIB_H
#define __LCDPLATFORMLIB_H
#ifndef LCD_PLATFORM_LIB_H_
#define LCD_PLATFORM_LIB_H_
#include <Protocol/GraphicsOutput.h>
@ -158,8 +158,9 @@
#define LCD_12BPP_444_BLUE_MASK 0x0000000F
#define LCD_12BPP_444_RESERVED_MASK 0x0000F000
// The enumeration indexes maps the PL111 LcdBpp values used in the LCD Control Register
/** The enumeration indexes maps the PL111 LcdBpp values used in the LCD Control
Register
**/
typedef enum {
LCD_BITS_PER_PIXEL_1 = 0,
LCD_BITS_PER_PIXEL_2,
@ -171,7 +172,6 @@ typedef enum {
LCD_BITS_PER_PIXEL_12_444
} LCD_BPP;
EFI_STATUS
LcdPlatformInitializeDisplay (
IN EFI_HANDLE Handle
@ -218,4 +218,4 @@ LcdPlatformGetBpp (
OUT LCD_BPP* Bpp
);
#endif
#endif /* LCD_PLATFORM_LIB_H_ */

88
ArmPlatformPkg/Library/HdLcd/HdLcd.c
View File

@ -1,6 +1,6 @@
/** @file Lcd.c
/** @file
Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -21,12 +21,9 @@
#include "HdLcd.h"
/**********************************************************************
*
* This file contains all the bits of the Lcd that are
* platform independent.
*
**********************************************************************/
/** This file contains all the bits of the Lcd that are
platform independent.
**/
STATIC
UINTN
@ -34,7 +31,7 @@ GetBytesPerPixel (
IN LCD_BPP Bpp
)
{
switch(Bpp) {
switch (Bpp) {
case LCD_BITS_PER_PIXEL_24:
return 4;
@ -60,21 +57,27 @@ LcdInitialize (
)
{
// Disable the controller
MmioWrite32(HDLCD_REG_COMMAND, HDLCD_DISABLE);
MmioWrite32 (HDLCD_REG_COMMAND, HDLCD_DISABLE);
// Disable all interrupts
MmioWrite32(HDLCD_REG_INT_MASK, 0);
MmioWrite32 (HDLCD_REG_INT_MASK, 0);
// Define start of the VRAM. This never changes for any graphics mode
MmioWrite32(HDLCD_REG_FB_BASE, (UINT32) VramBaseAddress);
MmioWrite32 (HDLCD_REG_FB_BASE, (UINT32)VramBaseAddress);
// Setup various registers that never change
MmioWrite32(HDLCD_REG_BUS_OPTIONS, (4 << 8) | HDLCD_BURST_8);
MmioWrite32(HDLCD_REG_POLARITIES, HDLCD_PXCLK_LOW | HDLCD_DATA_HIGH | HDLCD_DATEN_HIGH | HDLCD_HSYNC_LOW | HDLCD_VSYNC_HIGH);
MmioWrite32(HDLCD_REG_PIXEL_FORMAT, HDLCD_LITTLE_ENDIAN | HDLCD_4BYTES_PER_PIXEL);
MmioWrite32(HDLCD_REG_RED_SELECT, (0 << 16 | 8 << 8 | 0));
MmioWrite32(HDLCD_REG_GREEN_SELECT, (0 << 16 | 8 << 8 | 8));
MmioWrite32(HDLCD_REG_BLUE_SELECT, (0 << 16 | 8 << 8 | 16));
MmioWrite32 (HDLCD_REG_BUS_OPTIONS, (4 << 8) | HDLCD_BURST_8);
MmioWrite32 (HDLCD_REG_POLARITIES, HDLCD_DEFAULT_POLARITIES);
MmioWrite32 (
HDLCD_REG_PIXEL_FORMAT,
HDLCD_LITTLE_ENDIAN | HDLCD_4BYTES_PER_PIXEL
);
MmioWrite32 (HDLCD_REG_RED_SELECT, (0 << 16 | 8 << 8 | 0));
MmioWrite32 (HDLCD_REG_GREEN_SELECT, (0 << 16 | 8 << 8 | 8));
MmioWrite32 (HDLCD_REG_BLUE_SELECT, (0 << 16 | 8 << 8 | 16));
return EFI_SUCCESS;
}
@ -96,46 +99,53 @@ LcdSetMode (
UINT32 BytesPerPixel;
LCD_BPP LcdBpp;
// Set the video mode timings and other relevant information
Status = LcdPlatformGetTimings (ModeNumber,
&HRes,&HSync,&HBackPorch,&HFrontPorch,
&VRes,&VSync,&VBackPorch,&VFrontPorch);
Status = LcdPlatformGetTimings (
ModeNumber,
&HRes,
&HSync,
&HBackPorch,
&HFrontPorch,
&VRes,
&VSync,
&VBackPorch,
&VFrontPorch
);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR( Status )) {
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
Status = LcdPlatformGetBpp (ModeNumber,&LcdBpp);
Status = LcdPlatformGetBpp (ModeNumber, &LcdBpp);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR( Status )) {
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
BytesPerPixel = GetBytesPerPixel(LcdBpp);
BytesPerPixel = GetBytesPerPixel (LcdBpp);
// Disable the controller
MmioWrite32(HDLCD_REG_COMMAND, HDLCD_DISABLE);
MmioWrite32 (HDLCD_REG_COMMAND, HDLCD_DISABLE);
// Update the frame buffer information with the new settings
MmioWrite32(HDLCD_REG_FB_LINE_LENGTH, HRes * BytesPerPixel);
MmioWrite32(HDLCD_REG_FB_LINE_PITCH, HRes * BytesPerPixel);
MmioWrite32(HDLCD_REG_FB_LINE_COUNT, VRes - 1);
MmioWrite32 (HDLCD_REG_FB_LINE_LENGTH, HRes * BytesPerPixel);
MmioWrite32 (HDLCD_REG_FB_LINE_PITCH, HRes * BytesPerPixel);
MmioWrite32 (HDLCD_REG_FB_LINE_COUNT, VRes - 1);
// Set the vertical timing information
MmioWrite32(HDLCD_REG_V_SYNC, VSync);
MmioWrite32(HDLCD_REG_V_BACK_PORCH, VBackPorch);
MmioWrite32(HDLCD_REG_V_DATA, VRes - 1);
MmioWrite32(HDLCD_REG_V_FRONT_PORCH, VFrontPorch);
MmioWrite32 (HDLCD_REG_V_SYNC, VSync);
MmioWrite32 (HDLCD_REG_V_BACK_PORCH, VBackPorch);
MmioWrite32 (HDLCD_REG_V_DATA, VRes - 1);
MmioWrite32 (HDLCD_REG_V_FRONT_PORCH, VFrontPorch);
// Set the horizontal timing information
MmioWrite32(HDLCD_REG_H_SYNC, HSync);
MmioWrite32(HDLCD_REG_H_BACK_PORCH, HBackPorch);
MmioWrite32(HDLCD_REG_H_DATA, HRes - 1);
MmioWrite32(HDLCD_REG_H_FRONT_PORCH, HFrontPorch);
MmioWrite32 (HDLCD_REG_H_SYNC, HSync);
MmioWrite32 (HDLCD_REG_H_BACK_PORCH, HBackPorch);
MmioWrite32 (HDLCD_REG_H_DATA, HRes - 1);
MmioWrite32 (HDLCD_REG_H_FRONT_PORCH, HFrontPorch);
// Enable the controller
MmioWrite32(HDLCD_REG_COMMAND, HDLCD_ENABLE);
MmioWrite32 (HDLCD_REG_COMMAND, HDLCD_ENABLE);
return EFI_SUCCESS;
}

21
ArmPlatformPkg/Library/HdLcd/HdLcd.h
View File

@ -1,6 +1,6 @@
/** @file HDLcd.h
/** @file
Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -12,13 +12,10 @@
**/
#ifndef _HDLCD_H_
#define _HDLCD_H_
#ifndef HDLCD_H_
#define HDLCD_H_
//
// HDLCD Controller Register Offsets
//
#define HDLCD_REG_VERSION ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x000)
#define HDLCD_REG_INT_RAWSTAT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x010)
#define HDLCD_REG_INT_CLEAR ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x014)
@ -44,10 +41,7 @@
#define HDLCD_REG_GREEN_SELECT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x248)
#define HDLCD_REG_BLUE_SELECT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x24C)
//
// HDLCD Values of registers
//
// HDLCD Interrupt mask, clear and status register
#define HDLCD_DMA_END BIT0 /* DMA has finished reading a frame */
@ -79,6 +73,11 @@
#define HDLCD_DATA_LOW 0
#define HDLCD_PXCLK_LOW 0
// Default polarities
#define HDLCD_DEFAULT_POLARITIES (HDLCD_PXCLK_LOW | HDLCD_DATA_HIGH | \
HDLCD_DATEN_HIGH | HDLCD_HSYNC_LOW | \
HDLCD_VSYNC_HIGH)
// Pixel Format
#define HDLCD_LITTLE_ENDIAN (0 << 31)
#define HDLCD_BIG_ENDIAN (1 << 31)
@ -86,4 +85,4 @@
// Number of bytes per pixel
#define HDLCD_4BYTES_PER_PIXEL ((4 - 1) << 3)
#endif /* _HDLCD_H_ */
#endif /* HDLCD_H_ */

64
ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
View File

@ -1,6 +1,6 @@
/** @file PL111Lcd.c
/** @file
Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -19,13 +19,10 @@
#include "PL111Lcd.h"
/**********************************************************************
*
* This file contains all the bits of the PL111 that are
* platform independent.
*
**********************************************************************/
/** This file contains all the bits of the PL111 that are
platform independent.
**/
EFI_STATUS
LcdIdentify (
VOID
@ -54,11 +51,11 @@ LcdInitialize (
)
{
// Define start of the VRAM. This never changes for any graphics mode
MmioWrite32(PL111_REG_LCD_UP_BASE, (UINT32) VramBaseAddress);
MmioWrite32(PL111_REG_LCD_LP_BASE, 0); // We are not using a double buffer
MmioWrite32 (PL111_REG_LCD_UP_BASE, (UINT32)VramBaseAddress);
MmioWrite32 (PL111_REG_LCD_LP_BASE, 0); // We are not using a double buffer
// Disable all interrupts from the PL111
MmioWrite32(PL111_REG_LCD_IMSC, 0);
MmioWrite32 (PL111_REG_LCD_IMSC, 0);
return EFI_SUCCESS;
}
@ -81,37 +78,54 @@ LcdSetMode (
LCD_BPP LcdBpp;
// Set the video mode timings and other relevant information
Status = LcdPlatformGetTimings (ModeNumber,
&HRes,&HSync,&HBackPorch,&HFrontPorch,
&VRes,&VSync,&VBackPorch,&VFrontPorch);
Status = LcdPlatformGetTimings (
ModeNumber,
&HRes,
&HSync,
&HBackPorch,
&HFrontPorch,
&VRes,
&VSync,
&VBackPorch,
&VFrontPorch
);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR( Status )) {
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
Status = LcdPlatformGetBpp (ModeNumber,&LcdBpp);
Status = LcdPlatformGetBpp (ModeNumber, &LcdBpp);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR( Status )) {
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
// Disable the CLCD_LcdEn bit
LcdControl = MmioRead32( PL111_REG_LCD_CONTROL);
MmioWrite32(PL111_REG_LCD_CONTROL, LcdControl & ~1);
LcdControl = MmioRead32 (PL111_REG_LCD_CONTROL);
MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl & ~1);
// Set Timings
MmioWrite32 (PL111_REG_LCD_TIMING_0, HOR_AXIS_PANEL(HBackPorch, HFrontPorch, HSync, HRes));
MmioWrite32 (PL111_REG_LCD_TIMING_1, VER_AXIS_PANEL(VBackPorch, VFrontPorch, VSync, VRes));
MmioWrite32 (PL111_REG_LCD_TIMING_2, CLK_SIG_POLARITY(HRes));
MmioWrite32 (
PL111_REG_LCD_TIMING_0,
HOR_AXIS_PANEL (HBackPorch, HFrontPorch, HSync, HRes)
);
MmioWrite32 (
PL111_REG_LCD_TIMING_1,
VER_AXIS_PANEL (VBackPorch, VFrontPorch, VSync, VRes)
);
MmioWrite32 (PL111_REG_LCD_TIMING_2, CLK_SIG_POLARITY (HRes));
MmioWrite32 (PL111_REG_LCD_TIMING_3, 0);
// PL111_REG_LCD_CONTROL
LcdControl = PL111_CTRL_LCD_EN | PL111_CTRL_LCD_BPP(LcdBpp) | PL111_CTRL_LCD_TFT | PL111_CTRL_BGR;
MmioWrite32(PL111_REG_LCD_CONTROL, LcdControl);
LcdControl = PL111_CTRL_LCD_EN | PL111_CTRL_LCD_BPP (LcdBpp) |
PL111_CTRL_LCD_TFT | PL111_CTRL_BGR;
MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl);
// Turn on power to the LCD Panel
LcdControl |= PL111_CTRL_LCD_PWR;
MmioWrite32(PL111_REG_LCD_CONTROL, LcdControl);
MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl);
return EFI_SUCCESS;
}