262c88461b
The LcdPlatformGetTimings interface function takes similar sets of multiple parameters for horizontal and vertical timings which can be aggregated in a common data type. This change defines a structure SCAN_TIMINGS for this which can be used to describe both horizontal and vertical scan timings, and accordingly redefines the LcdPlatformGetTiming interface, greatly reducing the amount of data passed about. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Girish Pathak <girish.pathak@arm.com> Signed-off-by: Evan Lloyd <evan.lloyd@arm.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
152 lines
4.2 KiB
C
152 lines
4.2 KiB
C
/** @file
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Copyright (c) 2017, Linaro, Ltd. All rights reserved.
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Copyright (c) 2018, Arm Limited. All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Base.h>
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#include <Uefi/UefiBaseType.h>
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#include <Library/DebugLib.h>
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#include <Library/LcdPlatformLib.h>
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/** Platform related initialization function.
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@param[in] Handle Handle to the LCD device instance.
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@retval EFI_UNSUPPORTED Interface is not supported.
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**/
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EFI_STATUS
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LcdPlatformInitializeDisplay (
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IN EFI_HANDLE Handle
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)
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{
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ASSERT (FALSE);
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return EFI_UNSUPPORTED;
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}
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/** Allocate VRAM memory in DRAM for the framebuffer
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(unless it is reserved already).
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The allocated address can be used to set the framebuffer.
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@param[out] VramBaseAddress A pointer to the framebuffer address.
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@param[out] VramSize A pointer to the size of the frame
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buffer in bytes
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@retval EFI_UNSUPPORTED Interface is not supported.
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**/
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EFI_STATUS
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LcdPlatformGetVram (
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OUT EFI_PHYSICAL_ADDRESS* VramBaseAddress,
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OUT UINTN* VramSize
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)
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{
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ASSERT (FALSE);
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return EFI_UNSUPPORTED;
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}
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/** Return total number of modes supported.
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Note: Valid mode numbers are 0 to MaxMode - 1
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See Section 12.9 of the UEFI Specification 2.7
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@retval UINT32 Zero number of modes supported
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in a NULL library implementation.
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**/
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UINT32
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LcdPlatformGetMaxMode (
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VOID
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/** Set the requested display mode.
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@param[in] ModeNumber Mode Number.
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@retval EFI_UNSUPPORTED Interface is not supported.
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**/
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EFI_STATUS
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LcdPlatformSetMode (
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IN UINT32 ModeNumber
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)
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{
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ASSERT (FALSE);
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return EFI_UNSUPPORTED;
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}
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/** Return information for the requested mode number.
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@param[in] ModeNumber Mode Number.
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@param[out] Info Pointer for returned mode information
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(on success).
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@retval EFI_UNSUPPORTED Interface is not supported.
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**/
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EFI_STATUS
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LcdPlatformQueryMode (
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IN UINT32 ModeNumber,
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OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
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)
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{
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ASSERT (FALSE);
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return EFI_UNSUPPORTED;
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}
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/** Return display timing information for the requested mode number.
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@param[in] ModeNumber Mode Number.
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@param[out] HRes Pointer to horizontal resolution.
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@param[out] HSync Pointer to horizontal sync width.
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@param[out] HBackPorch Pointer to horizontal back porch.
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@param[out] HFrontPorch Pointer to horizontal front porch.
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@param[out] VRes Pointer to vertical resolution.
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@param[out] VSync Pointer to vertical sync width.
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@param[out] VBackPorch Pointer to vertical back porch.
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@param[out] VFrontPorch Pointer to vertical front porch.
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@retval EFI_UNSUPPORTED Interface is not supported.
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**/
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EFI_STATUS
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LcdPlatformGetTimings (
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IN UINT32 ModeNumber,
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OUT SCAN_TIMINGS **Horizontal,
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OUT SCAN_TIMINGS **Vertical
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)
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{
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ASSERT (FALSE);
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return EFI_UNSUPPORTED;
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}
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/** Return bits per pixel information for a mode number.
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@param[in] ModeNumber Mode Number.
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@param[out] Bpp Pointer to value bits per pixel information.
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@retval EFI_UNSUPPORTED Interface is not supported.
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**/
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EFI_STATUS
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LcdPlatformGetBpp (
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IN UINT32 ModeNumber,
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OUT LCD_BPP* Bpp
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)
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{
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ASSERT (FALSE);
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return EFI_UNSUPPORTED;
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}
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