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/** @file
Copyright (c) 2011, 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
http://opensource.org/licenses/bsd-license.php
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/LcdPlatformLib.h>
#include <Library/IoLib.h>
#include <Library/DebugLib.h>
#include <Drivers/PL111Lcd.h>
#include <ArmPlatform.h>
typedef struct {
UINT32 Mode;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
LCD_BPP Bpp;
UINT32 ClcdClk;
UINT32 HSync;
UINT32 HBackPorch;
UINT32 HFrontPorch;
UINT32 VSync;
UINT32 VBackPorch;
UINT32 VFrontPorch;
} CLCD_RESOLUTION;
CLCD_RESOLUTION mResolutions[] = {
{ // Mode 0 : VGA : 640 x 480 x 24 bpp
VGA, VGA_H_RES_PIXELS, VGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_24, 0x2C77,
VGA_H_SYNC, VGA_H_BACK_PORCH, VGA_H_FRONT_PORCH,
VGA_V_SYNC, VGA_V_BACK_PORCH, VGA_V_FRONT_PORCH
},
{ // Mode 1 : SVGA : 800 x 600 x 24 bpp
SVGA, SVGA_H_RES_PIXELS, SVGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_24, 0x2CAC,
SVGA_H_SYNC, SVGA_H_BACK_PORCH, SVGA_H_FRONT_PORCH,
SVGA_V_SYNC, SVGA_V_BACK_PORCH, SVGA_V_FRONT_PORCH
}
};
EFI_STATUS
LcdPlatformInitializeDisplay (
VOID
)
{
MmioWrite32(ARM_EB_SYS_CLCD_REG, 1);
return EFI_SUCCESS;
}
EFI_STATUS
LcdPlatformGetVram (
OUT EFI_PHYSICAL_ADDRESS* VramBaseAddress,
OUT UINTN* VramSize
)
{
*VramBaseAddress = PL111_CLCD_VRAM_BASE;
*VramSize = SIZE_8MB; //FIXME: Can this size change ?
return EFI_SUCCESS;
}
UINT32
LcdPlatformGetMaxMode (
VOID
)
{
return (sizeof(mResolutions) / sizeof(CLCD_RESOLUTION));
}
EFI_STATUS
LcdPlatformSetMode (
IN UINT32 ModeNumber
)
{
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
return EFI_INVALID_PARAMETER;
}
MmioWrite32(ARM_EB_SYS_LOCK_REG,0x0000A05F);
MmioWrite32(ARM_EB_SYS_OSC4_REG,mResolutions[ModeNumber].ClcdClk);
MmioWrite32(ARM_EB_SYS_LOCK_REG,0x0);
return EFI_SUCCESS;
}
EFI_STATUS
LcdPlatformQueryMode (
IN UINT32 ModeNumber,
OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
)
{
EFI_STATUS Status;
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_UNSUPPORTED;
Info->Version = 0;
Info->HorizontalResolution = mResolutions[ModeNumber].HorizontalResolution;
Info->VerticalResolution = mResolutions[ModeNumber].VerticalResolution;
Info->PixelsPerScanLine = mResolutions[ModeNumber].HorizontalResolution;
switch (mResolutions[ModeNumber].Bpp) {
case LCD_BITS_PER_PIXEL_24:
Info->PixelFormat = PixelRedGreenBlueReserved8BitPerColor;
Info->PixelInformation.RedMask = LCD_24BPP_RED_MASK;
Info->PixelInformation.GreenMask = LCD_24BPP_GREEN_MASK;
Info->PixelInformation.BlueMask = LCD_24BPP_BLUE_MASK;
Info->PixelInformation.ReservedMask = LCD_24BPP_RESERVED_MASK;
Status = EFI_SUCCESS;
break;
case LCD_BITS_PER_PIXEL_16_555:
Info->PixelFormat = PixelBitMask;
Info->PixelInformation.RedMask = LCD_16BPP_555_RED_MASK;
Info->PixelInformation.GreenMask = LCD_16BPP_555_GREEN_MASK;
Info->PixelInformation.BlueMask = LCD_16BPP_555_BLUE_MASK;
Info->PixelInformation.ReservedMask = LCD_16BPP_555_RESERVED_MASK;
Status = EFI_SUCCESS;
break;
case LCD_BITS_PER_PIXEL_16_565:
Info->PixelFormat = PixelBitMask;
Info->PixelInformation.RedMask = LCD_16BPP_565_RED_MASK;
Info->PixelInformation.GreenMask = LCD_16BPP_565_GREEN_MASK;
Info->PixelInformation.BlueMask = LCD_16BPP_565_BLUE_MASK;
Info->PixelInformation.ReservedMask = LCD_16BPP_565_RESERVED_MASK;
Status = EFI_SUCCESS;
break;
case LCD_BITS_PER_PIXEL_12_444:
Info->PixelFormat = PixelBitMask;
Info->PixelInformation.RedMask = LCD_12BPP_444_RED_MASK;
Info->PixelInformation.GreenMask = LCD_12BPP_444_GREEN_MASK;
Info->PixelInformation.BlueMask = LCD_12BPP_444_BLUE_MASK;
Info->PixelInformation.ReservedMask = LCD_12BPP_444_RESERVED_MASK;
Status = EFI_SUCCESS;
break;
case LCD_BITS_PER_PIXEL_8:
case LCD_BITS_PER_PIXEL_4:
case LCD_BITS_PER_PIXEL_2:
case LCD_BITS_PER_PIXEL_1:
default:
// These are not supported
break;
}
return Status;
}
EFI_STATUS
LcdPlatformGetTimings (
IN UINT32 ModeNumber,
OUT UINT32* HRes,
OUT UINT32* HSync,
OUT UINT32* HBackPorch,
OUT UINT32* HFrontPorch,
OUT UINT32* VRes,
OUT UINT32* VSync,
OUT UINT32* VBackPorch,
OUT UINT32* VFrontPorch
)
{
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
return EFI_INVALID_PARAMETER;
}
*HRes = mResolutions[ModeNumber].HorizontalResolution;
*HSync = mResolutions[ModeNumber].HSync;
*HBackPorch = mResolutions[ModeNumber].HBackPorch;
*HFrontPorch = mResolutions[ModeNumber].HFrontPorch;
*VRes = mResolutions[ModeNumber].VerticalResolution;
*VSync = mResolutions[ModeNumber].VSync;
*VBackPorch = mResolutions[ModeNumber].VBackPorch;
*VFrontPorch = mResolutions[ModeNumber].VFrontPorch;
return EFI_SUCCESS;
}
EFI_STATUS
LcdPlatformGetBpp (
IN UINT32 ModeNumber,
OUT LCD_BPP * Bpp
)
{
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
return EFI_INVALID_PARAMETER;
}
*Bpp = mResolutions[ModeNumber].Bpp;
return EFI_SUCCESS;
}
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