ArmPlatformPkg/ArmVExpressPkg/Library/PL111LcdArmVExpressLib/PL111LcdArmVExpress.c
/** @file
Copyright (c) 2011-2013, 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/ArmPlatformSysConfigLib.h>
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
#include <Library/LcdPlatformLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Protocol/Cpu.h>
#include <Protocol/EdidDiscovered.h>
#include <Protocol/EdidActive.h>
#include <ArmPlatform.h>
typedef struct {
UINT32 Mode;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
LCD_BPP Bpp;
UINT32 OscFreq;
UINT32 HSync;
UINT32 HBackPorch;
UINT32 HFrontPorch;
UINT32 VSync;
UINT32 VBackPorch;
UINT32 VFrontPorch;
} LCD_RESOLUTION;
LCD_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, VGA_OSC_FREQUENCY,
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, SVGA_OSC_FREQUENCY,
SVGA_H_SYNC, SVGA_H_BACK_PORCH, SVGA_H_FRONT_PORCH,
SVGA_V_SYNC, SVGA_V_BACK_PORCH, SVGA_V_FRONT_PORCH
},
{ // Mode 2 : XGA : 1024 x 768 x 24 bpp
XGA, XGA_H_RES_PIXELS, XGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_24, XGA_OSC_FREQUENCY,
XGA_H_SYNC, XGA_H_BACK_PORCH, XGA_H_FRONT_PORCH,
XGA_V_SYNC, XGA_V_BACK_PORCH, XGA_V_FRONT_PORCH
},
{ // Mode 3 : SXGA : 1280 x 1024 x 24 bpp
SXGA, SXGA_H_RES_PIXELS, SXGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_24, (SXGA_OSC_FREQUENCY/2),
SXGA_H_SYNC, SXGA_H_BACK_PORCH, SXGA_H_FRONT_PORCH,
SXGA_V_SYNC, SXGA_V_BACK_PORCH, SXGA_V_FRONT_PORCH
},
{ // Mode 4 : UXGA : 1600 x 1200 x 24 bpp
UXGA, UXGA_H_RES_PIXELS, UXGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_24, (UXGA_OSC_FREQUENCY/2),
UXGA_H_SYNC, UXGA_H_BACK_PORCH, UXGA_H_FRONT_PORCH,
UXGA_V_SYNC, UXGA_V_BACK_PORCH, UXGA_V_FRONT_PORCH
},
{ // Mode 5 : HD : 1920 x 1080 x 24 bpp
HD, HD_H_RES_PIXELS, HD_V_RES_PIXELS, LCD_BITS_PER_PIXEL_24, (HD_OSC_FREQUENCY/2),
HD_H_SYNC, HD_H_BACK_PORCH, HD_H_FRONT_PORCH,
HD_V_SYNC, HD_V_BACK_PORCH, HD_V_FRONT_PORCH
},
{ // Mode 6 : VGA : 640 x 480 x 16 bpp (565 Mode)
VGA, VGA_H_RES_PIXELS, VGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_565, VGA_OSC_FREQUENCY,
VGA_H_SYNC, VGA_H_BACK_PORCH, VGA_H_FRONT_PORCH,
VGA_V_SYNC, VGA_V_BACK_PORCH, VGA_V_FRONT_PORCH
},
{ // Mode 7 : SVGA : 800 x 600 x 16 bpp (565 Mode)
SVGA, SVGA_H_RES_PIXELS, SVGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_565, SVGA_OSC_FREQUENCY,
SVGA_H_SYNC, SVGA_H_BACK_PORCH, SVGA_H_FRONT_PORCH,
SVGA_V_SYNC, SVGA_V_BACK_PORCH, SVGA_V_FRONT_PORCH
},
{ // Mode 8 : XGA : 1024 x 768 x 16 bpp (565 Mode)
XGA, XGA_H_RES_PIXELS, XGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_565, XGA_OSC_FREQUENCY,
XGA_H_SYNC, XGA_H_BACK_PORCH, XGA_H_FRONT_PORCH,
XGA_V_SYNC, XGA_V_BACK_PORCH, XGA_V_FRONT_PORCH
},
{ // Mode 9 : VGA : 640 x 480 x 15 bpp
VGA, VGA_H_RES_PIXELS, VGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_555, VGA_OSC_FREQUENCY,
VGA_H_SYNC, VGA_H_BACK_PORCH, VGA_H_FRONT_PORCH,
VGA_V_SYNC, VGA_V_BACK_PORCH, VGA_V_FRONT_PORCH
},
{ // Mode 10 : SVGA : 800 x 600 x 15 bpp
SVGA, SVGA_H_RES_PIXELS, SVGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_555, SVGA_OSC_FREQUENCY,
SVGA_H_SYNC, SVGA_H_BACK_PORCH, SVGA_H_FRONT_PORCH,
SVGA_V_SYNC, SVGA_V_BACK_PORCH, SVGA_V_FRONT_PORCH
},
{ // Mode 11 : XGA : 1024 x 768 x 15 bpp
XGA, XGA_H_RES_PIXELS, XGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_555, XGA_OSC_FREQUENCY,
XGA_H_SYNC, XGA_H_BACK_PORCH, XGA_H_FRONT_PORCH,
XGA_V_SYNC, XGA_V_BACK_PORCH, XGA_V_FRONT_PORCH
},
{ // Mode 12 : XGA : 1024 x 768 x 15 bpp - All the timing info is derived from Linux Kernel Driver Settings
XGA, XGA_H_RES_PIXELS, XGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_16_555, 63500000,
XGA_H_SYNC, XGA_H_BACK_PORCH, XGA_H_FRONT_PORCH,
XGA_V_SYNC, XGA_V_BACK_PORCH, XGA_V_FRONT_PORCH
},
{ // Mode 13 : VGA : 640 x 480 x 12 bpp (444 Mode)
VGA, VGA_H_RES_PIXELS, VGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_12_444, VGA_OSC_FREQUENCY,
VGA_H_SYNC, VGA_H_BACK_PORCH, VGA_H_FRONT_PORCH,
VGA_V_SYNC, VGA_V_BACK_PORCH, VGA_V_FRONT_PORCH
},
{ // Mode 14 : SVGA : 800 x 600 x 12 bpp (444 Mode)
SVGA, SVGA_H_RES_PIXELS, SVGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_12_444, SVGA_OSC_FREQUENCY,
SVGA_H_SYNC, SVGA_H_BACK_PORCH, SVGA_H_FRONT_PORCH,
SVGA_V_SYNC, SVGA_V_BACK_PORCH, SVGA_V_FRONT_PORCH
},
{ // Mode 15 : XGA : 1024 x 768 x 12 bpp (444 Mode)
XGA, XGA_H_RES_PIXELS, XGA_V_RES_PIXELS, LCD_BITS_PER_PIXEL_12_444, XGA_OSC_FREQUENCY,
XGA_H_SYNC, XGA_H_BACK_PORCH, XGA_H_FRONT_PORCH,
XGA_V_SYNC, XGA_V_BACK_PORCH, XGA_V_FRONT_PORCH
}
};
EFI_EDID_DISCOVERED_PROTOCOL mEdidDiscovered = {
0,
NULL
};
EFI_EDID_ACTIVE_PROTOCOL mEdidActive = {
0,
NULL
};
EFI_STATUS
LcdPlatformInitializeDisplay (
IN EFI_HANDLE Handle
)
{
EFI_STATUS Status;
// Set the FPGA multiplexer to select the video output from the motherboard or the daughterboard
Status = ArmPlatformSysConfigSet (SYS_CFG_MUXFPGA, PL111_CLCD_SITE);
if (!EFI_ERROR(Status)) {
// Install the EDID Protocols
Status = gBS->InstallMultipleProtocolInterfaces(
&Handle,
&gEfiEdidDiscoveredProtocolGuid, &mEdidDiscovered,
&gEfiEdidActiveProtocolGuid, &mEdidActive,
NULL
);
}
return Status;
}
EFI_STATUS
LcdPlatformGetVram (
OUT EFI_PHYSICAL_ADDRESS* VramBaseAddress,
OUT UINTN* VramSize
)
{
EFI_STATUS Status;
EFI_CPU_ARCH_PROTOCOL *Cpu;
Status = EFI_SUCCESS;
// Is it on the motherboard or on the daughterboard?
switch(PL111_CLCD_SITE) {
case ARM_VE_MOTHERBOARD_SITE:
*VramBaseAddress = (EFI_PHYSICAL_ADDRESS) PL111_CLCD_VRAM_MOTHERBOARD_BASE;
*VramSize = LCD_VRAM_SIZE;
break;
case ARM_VE_DAUGHTERBOARD_1_SITE:
*VramBaseAddress = (EFI_PHYSICAL_ADDRESS) LCD_VRAM_CORE_TILE_BASE;
*VramSize = LCD_VRAM_SIZE;
// Allocate the VRAM from the DRAM so that nobody else uses it.
Status = gBS->AllocatePages( AllocateAddress, EfiBootServicesData, EFI_SIZE_TO_PAGES(((UINTN)LCD_VRAM_SIZE)), VramBaseAddress);
if (EFI_ERROR(Status)) {
return Status;
}
// Ensure the Cpu architectural protocol is already installed
Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
ASSERT_EFI_ERROR(Status);
// Mark the VRAM as un-cachable. The VRAM is inside the DRAM, which is cachable.
Status = Cpu->SetMemoryAttributes(Cpu, *VramBaseAddress, *VramSize, EFI_MEMORY_UC);
ASSERT_EFI_ERROR(Status);
if (EFI_ERROR(Status)) {
gBS->FreePool(VramBaseAddress);
return Status;
}
break;
default:
// Unsupported site
Status = EFI_UNSUPPORTED;
break;
}
return Status;
}
UINT32
LcdPlatformGetMaxMode (
VOID
)
{
// The following line will report correctly the total number of graphics modes
// supported by the PL111CLCD.
//return (sizeof(mResolutions) / sizeof(CLCD_RESOLUTION)) - 1;
// However, on some platforms it is desirable to ignore some graphics modes.
// This could be because the specific implementation of PL111 has certain limitations.
// Set the maximum mode allowed
return (PcdGet32(PcdPL111LcdMaxMode));
}
EFI_STATUS
LcdPlatformSetMode (
IN UINT32 ModeNumber
)
{
EFI_STATUS Status;
UINT32 LcdSite;
UINT32 OscillatorId;
SYS_CONFIG_FUNCTION Function;
UINT32 SysId;
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
return EFI_INVALID_PARAMETER;
}
LcdSite = PL111_CLCD_SITE;
switch(LcdSite) {
case ARM_VE_MOTHERBOARD_SITE:
Function = SYS_CFG_OSC;
OscillatorId = PL111_CLCD_MOTHERBOARD_VIDEO_MODE_OSC_ID;
break;
case ARM_VE_DAUGHTERBOARD_1_SITE:
Function = SYS_CFG_OSC_SITE1;
OscillatorId = (UINT32)PcdGet32(PcdPL111LcdVideoModeOscId);
break;
default:
return EFI_UNSUPPORTED;
}
// Set the video mode oscillator
Status = ArmPlatformSysConfigSetDevice (Function, OscillatorId, mResolutions[ModeNumber].OscFreq);
if (EFI_ERROR(Status)) {
ASSERT_EFI_ERROR (Status);
return Status;
}
// The FVP foundation model does not have an LCD.
// On the FVP models the GIC variant in encoded in bits [15:12].
// Note: The DVI Mode is not modelled by RTSM or FVP models.
SysId = MmioRead32 (ARM_VE_SYS_ID_REG);
if (SysId != ARM_RTSM_SYS_ID) {
// Take out the FVP GIC variant to reduce the permutations.
SysId &= ~ARM_FVP_SYS_ID_VARIANT_MASK;
if (SysId != (ARM_FVP_BASE_SYS_ID & ~ARM_FVP_SYS_ID_VARIANT_MASK)) {
// Set the DVI into the new mode
Status = ArmPlatformSysConfigSet (SYS_CFG_DVIMODE, mResolutions[ModeNumber].Mode);
if (EFI_ERROR(Status)) {
ASSERT_EFI_ERROR (Status);
return Status;
}
}
}
// Set the multiplexer
Status = ArmPlatformSysConfigSet (SYS_CFG_MUXFPGA, LcdSite);
if (EFI_ERROR(Status)) {
ASSERT_EFI_ERROR (Status);
return Status;
}
return Status;
}
EFI_STATUS
LcdPlatformQueryMode (
IN UINT32 ModeNumber,
OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
)
{
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
return EFI_INVALID_PARAMETER;
}
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;
break;
case LCD_BITS_PER_PIXEL_16_555:
case LCD_BITS_PER_PIXEL_16_565:
case LCD_BITS_PER_PIXEL_12_444:
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
ASSERT(FALSE);
break;
}
return EFI_SUCCESS;
}
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;
}