/** @file
Copyright (c) 2011-2018, ARM Ltd. All rights reserved.
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
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
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;
/** The display modes supported by the platform.
**/
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
};
/** PL111 Platform specific initialization function.
@param[in] Handle Handle to the LCD device instance.
@retval EFI_SUCCESS Plaform library initialized successfully.
@retval !(EFI_SUCCESS) Other errors.
**/
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;
}
/** Allocate VRAM memory in DRAM for the framebuffer
(unless it is reserved already).
The allocated address can be used to set the framebuffer.
@param[out] VramBaseAddress A pointer to the framebuffer address.
@param[out] VramSize A pointer to the size of the framebuffer
in bytes
@retval EFI_SUCCESS Framebuffer memory allocated successfully.
@retval !(EFI_SUCCESS) Other errors.
**/
EFI_STATUS
LcdPlatformGetVram (
OUT EFI_PHYSICAL_ADDRESS* VramBaseAddress,
OUT UINTN* VramSize
)
{
EFI_STATUS Status;
ASSERT (VramBaseAddress != NULL);
ASSERT (VramSize != NULL);
// 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;
Status = EFI_SUCCESS;
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)) {
ASSERT_EFI_ERROR (Status);
return Status;
}
// Mark the VRAM as write-combining.
// The VRAM is inside the DRAM, which is cacheable.
Status = gDS->SetMemorySpaceAttributes (
*VramBaseAddress,
*VramSize,
EFI_MEMORY_WC
);
if (EFI_ERROR (Status)) {
ASSERT_EFI_ERROR (Status);
gBS->FreePages (*VramBaseAddress, EFI_SIZE_TO_PAGES (*VramSize));
}
break;
default:
// Unsupported site
Status = EFI_UNSUPPORTED;
break;
}
return Status;
}
/** Return total number of modes supported.
Note: Valid mode numbers are 0 to MaxMode - 1
See Section 12.9 of the UEFI Specification 2.7
@retval UINT32 Mode Number.
**/
UINT32
LcdPlatformGetMaxMode (VOID)
{
// The following line would correctly report 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 (FixedPcdGet32 (PcdPL111LcdMaxMode));
}
/** Set the requested display mode.
@param[in] ModeNumber Mode Number.
@retval EFI_SUCCESS Mode set successfully.
@retval EFI_INVALID_PARAMETER Requested mode not found.
@retval EFI_UNSUPPORTED PLL111 configuration not supported.
@retval !(EFI_SUCCESS) Other errors.
**/
EFI_STATUS
LcdPlatformSetMode (
IN UINT32 ModeNumber
)
{
EFI_STATUS Status;
UINT32 OscillatorId;
SYS_CONFIG_FUNCTION Function;
UINT32 SysId;
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
ASSERT (FALSE);
return EFI_INVALID_PARAMETER;
}
switch (PL111_CLCD_SITE) {
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 = FixedPcdGet32 (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 build variant is 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) {
// Ignore build variant and revision.
SysId &= ~(ARM_FVP_SYS_ID_VARIANT_MASK | ARM_FVP_SYS_ID_REV_MASK);
if (SysId != ARM_FVP_BASE_BOARD_SYS_ID) {
// 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, PL111_CLCD_SITE);
ASSERT_EFI_ERROR (Status);
return Status;
}
/** Return information for the requested mode number.
@param[in] ModeNumber Mode Number.
@param[out] Info Pointer for returned mode information
(on success).
@retval EFI_SUCCESS Mode information for the requested mode
returned successfully.
@retval EFI_INVALID_PARAMETER Requested mode not found.
**/
EFI_STATUS
LcdPlatformQueryMode (
IN UINT32 ModeNumber,
OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
)
{
ASSERT (Info != NULL);
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
ASSERT (FALSE);
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;
}
/** Return display timing information for the requested mode number.
@param[in] ModeNumber Mode Number.
@param[out] HRes Pointer to horizontal resolution.
@param[out] HSync Pointer to horizontal sync width.
@param[out] HBackPorch Pointer to horizontal back porch.
@param[out] HFrontPorch Pointer to horizontal front porch.
@param[out] VRes Pointer to vertical resolution.
@param[out] VSync Pointer to vertical sync width.
@param[out] VBackPorch Pointer to vertical back porch.
@param[out] VFrontPorch Pointer to vertical front porch.
@retval EFI_SUCCESS Display timing information for the requested
mode returned successfully.
@retval EFI_INVALID_PARAMETER Requested mode not found.
**/
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
)
{
// One of the pointers is NULL
ASSERT (HRes != NULL);
ASSERT (HSync != NULL);
ASSERT (HBackPorch != NULL);
ASSERT (HFrontPorch != NULL);
ASSERT (VRes != NULL);
ASSERT (VSync != NULL);
ASSERT (VBackPorch != NULL);
ASSERT (VFrontPorch != NULL);
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
ASSERT (FALSE);
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;
}
/** Return bits per pixel information for a mode number.
@param[in] ModeNumber Mode Number.
@param[out] Bpp Pointer to bits per pixel information.
@retval EFI_SUCCESS Bits per pixel information for the requested
mode returned successfully.
@retval EFI_INVALID_PARAMETER Requested mode not found.
**/
EFI_STATUS
LcdPlatformGetBpp (
IN UINT32 ModeNumber,
OUT LCD_BPP * Bpp
)
{
ASSERT (Bpp != NULL);
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
ASSERT (FALSE);
return EFI_INVALID_PARAMETER;
}
*Bpp = mResolutions[ModeNumber].Bpp;
return EFI_SUCCESS;
}