/** @file
|
|
Copyright (c) 2022 Rockchip Electronics Co. Ltd.
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
|
#include <Protocol/RockchipCrtcProtocol.h>
|
|
#include <Library/DebugLib.h>
|
#include <Library/IoLib.h>
|
#include <Library/BaseLib.h>
|
#include <Library/MemoryAllocationLib.h>
|
#include <Library/MediaBusFormat.h>
|
#include <Library/DrmModes.h>
|
#include <Library/RockchipDisplayLib.h>
|
|
EFIAPI
|
EFI_STATUS
|
DisplaySetCrtcInfo (
|
OUT DRM_DISPLAY_MODE *Mode,
|
IN UINT32 AdjustFlags
|
)
|
{
|
if ((Mode == NULL) || ((Mode->Type & DRM_MODE_TYPE_CRTC_C) == DRM_MODE_TYPE_BUILTIN))
|
return EFI_UNSUPPORTED;
|
|
if (Mode->Flags & DRM_MODE_FLAG_DBLCLK)
|
Mode->CrtcClock = 2 * Mode->Clock;
|
else
|
Mode->CrtcClock = Mode->Clock;
|
Mode->CrtcHDisplay = Mode->HDisplay;
|
Mode->CrtcHSyncStart = Mode->HSyncStart;
|
Mode->CrtcHSyncEnd = Mode->HSyncEnd;
|
Mode->CrtcHTotal = Mode->HTotal;
|
Mode->CrtcHSkew = Mode->HSkew;
|
Mode->CrtcVDisplay = Mode->VDisplay;
|
Mode->CrtcVSyncStart = Mode->VSyncStart;
|
Mode->CrtcVSyncEnd = Mode->VSyncEnd;
|
Mode->CrtcVTotal = Mode->VTotal;
|
|
if (Mode->Flags & DRM_MODE_FLAG_INTERLACE) {
|
if (AdjustFlags & CRTC_INTERLACE_HALVE_V) {
|
Mode->CrtcVDisplay /= 2;
|
Mode->CrtcVSyncStart /= 2;
|
Mode->CrtcVSyncEnd /= 2;
|
Mode->CrtcVTotal /= 2;
|
}
|
}
|
|
if (!(AdjustFlags & CRTC_NO_DBLSCAN)) {
|
if (Mode->Flags & DRM_MODE_FLAG_DBLSCAN) {
|
Mode->CrtcVDisplay *= 2;
|
Mode->CrtcVSyncStart *= 2;
|
Mode->CrtcVSyncEnd *= 2;
|
Mode->CrtcVTotal *= 2;
|
}
|
}
|
|
if (!(AdjustFlags & CRTC_NO_VSCAN)) {
|
if (Mode->VScan > 1) {
|
Mode->CrtcVDisplay *= Mode->VScan;
|
Mode->CrtcVSyncStart *= Mode->VScan;
|
Mode->CrtcVSyncEnd *= Mode->VScan;
|
Mode->CrtcVTotal *= Mode->VScan;
|
}
|
}
|
|
Mode->CrtcVBlankStart = MIN(Mode->CrtcVSyncStart, Mode->CrtcVDisplay);
|
Mode->CrtcVBlankEnd = MAX(Mode->CrtcVSyncEnd, Mode->CrtcVTotal);
|
Mode->CrtcHBlankStart = MIN(Mode->CrtcHSyncStart, Mode->CrtcHDisplay);
|
Mode->CrtcHBblankEnd = MAX(Mode->CrtcHSyncEnd, Mode->CrtcHTotal);
|
|
return EFI_SUCCESS;
|
}
|
|
EFIAPI
|
EFI_STATUS
|
DisplaySetFramebuffer (
|
OUT EFI_PHYSICAL_ADDRESS* VramBaseAddress,
|
OUT UINTN* VramSize
|
)
|
{
|
// Set the VRAM size.
|
*VramSize = (UINTN)FixedPcdGet64(PcdLcdDdrFrameBufferSize);
|
|
// Check if base address is already reserved for the framebuffer.
|
*VramBaseAddress = (EFI_PHYSICAL_ADDRESS)FixedPcdGet64(PcdLcdDdrFrameBufferBase);
|
|
return EFI_SUCCESS;
|
}
|
|
