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/** @file
Copyright (c) 2012-2018, 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 <PiDxe.h>
#include <Library/ArmPlatformSysConfigLib.h>
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/LcdPlatformLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.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;
// These are used by HDLCD
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
}
};
EFI_EDID_DISCOVERED_PROTOCOL mEdidDiscovered = {
0,
NULL
};
EFI_EDID_ACTIVE_PROTOCOL mEdidActive = {
0,
NULL
};
/** HDLCD 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,
ARM_VE_DAUGHTERBOARD_1_SITE
);
if (EFI_ERROR (Status)) {
return 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;
EFI_ALLOCATE_TYPE AllocationType;
ASSERT (VramBaseAddress != NULL);
ASSERT (VramSize != NULL);
// Set the vram size
*VramSize = LCD_VRAM_SIZE;
*VramBaseAddress = (EFI_PHYSICAL_ADDRESS)LCD_VRAM_CORE_TILE_BASE;
// Allocate the VRAM from the DRAM so that nobody else uses it.
if (*VramBaseAddress == 0) {
AllocationType = AllocateAnyPages;
} else {
AllocationType = AllocateAddress;
}
Status = gBS->AllocatePages (
AllocationType,
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));
return Status;
}
return EFI_SUCCESS;
}
/** 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 will report correctly the total number of graphics modes
// that could be supported by the graphics driver
return (sizeof (mResolutions) / sizeof (LCD_RESOLUTION));
}
/** 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_SUCCESS) Other errors.
**/
EFI_STATUS
LcdPlatformSetMode (
IN UINT32 ModeNumber
)
{
EFI_STATUS Status;
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
ASSERT (FALSE);
return EFI_INVALID_PARAMETER;
}
// Set the video mode oscillator
Status = ArmPlatformSysConfigSetDevice (
SYS_CFG_OSC_SITE1,
FixedPcdGet32 (PcdHdLcdVideoModeOscId),
mResolutions[ModeNumber].OscFreq
);
if (EFI_ERROR (Status)) {
ASSERT_EFI_ERROR (Status);
return Status;
}
// 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,
ARM_VE_DAUGHTERBOARD_1_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
)
{
if (ModeNumber >= LcdPlatformGetMaxMode ()) {
ASSERT (FALSE);
return EFI_INVALID_PARAMETER;
}
*Bpp = mResolutions[ModeNumber].Bpp;
return EFI_SUCCESS;
}
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