From 3e7105bb6c21760c9c818ac934f402a451fb4491 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 1 Dec 2017 10:20:25 +0000 Subject: [PATCH] ArmPlatformPkg: implement LcdHwLib for HdLcd Convert the HdLcd specific code of LcdGraphicsOutputDxe into a LcdHwlib implementation that we will wire up later into LcdGraphicsOutputDxe. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Girish Pathak Signed-off-by: Evan Lloyd Signed-off-by: Ard Biesheuvel Reviewed-by: Leif Lindholm --- ArmPlatformPkg/Library/HdLcd/HdLcd.c | 158 +++++++++++++++++++++++++ ArmPlatformPkg/Library/HdLcd/HdLcd.h | 89 ++++++++++++++ ArmPlatformPkg/Library/HdLcd/HdLcd.inf | 42 +++++++ 3 files changed, 289 insertions(+) create mode 100644 ArmPlatformPkg/Library/HdLcd/HdLcd.c create mode 100644 ArmPlatformPkg/Library/HdLcd/HdLcd.h create mode 100644 ArmPlatformPkg/Library/HdLcd/HdLcd.inf diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.c b/ArmPlatformPkg/Library/HdLcd/HdLcd.c new file mode 100644 index 0000000000..24efb68f23 --- /dev/null +++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.c @@ -0,0 +1,158 @@ +/** @file Lcd.c + + Copyright (c) 2011-2012, 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 "HdLcd.h" + +/********************************************************************** + * + * This file contains all the bits of the Lcd that are + * platform independent. + * + **********************************************************************/ + +STATIC +UINTN +GetBytesPerPixel ( + IN LCD_BPP Bpp + ) +{ + switch(Bpp) { + case LCD_BITS_PER_PIXEL_24: + return 4; + + case LCD_BITS_PER_PIXEL_16_565: + case LCD_BITS_PER_PIXEL_16_555: + case LCD_BITS_PER_PIXEL_12_444: + return 2; + + case LCD_BITS_PER_PIXEL_8: + case LCD_BITS_PER_PIXEL_4: + case LCD_BITS_PER_PIXEL_2: + case LCD_BITS_PER_PIXEL_1: + return 1; + + default: + return 0; + } +} + +EFI_STATUS +LcdInitialize ( + IN EFI_PHYSICAL_ADDRESS VramBaseAddress + ) +{ + // Disable the controller + MmioWrite32(HDLCD_REG_COMMAND, HDLCD_DISABLE); + + // Disable all interrupts + MmioWrite32(HDLCD_REG_INT_MASK, 0); + + // Define start of the VRAM. This never changes for any graphics mode + MmioWrite32(HDLCD_REG_FB_BASE, (UINT32) VramBaseAddress); + + // Setup various registers that never change + MmioWrite32(HDLCD_REG_BUS_OPTIONS, (4 << 8) | HDLCD_BURST_8); + MmioWrite32(HDLCD_REG_POLARITIES, HDLCD_PXCLK_LOW | HDLCD_DATA_HIGH | HDLCD_DATEN_HIGH | HDLCD_HSYNC_LOW | HDLCD_VSYNC_HIGH); + MmioWrite32(HDLCD_REG_PIXEL_FORMAT, HDLCD_LITTLE_ENDIAN | HDLCD_4BYTES_PER_PIXEL); + MmioWrite32(HDLCD_REG_RED_SELECT, (0 << 16 | 8 << 8 | 0)); + MmioWrite32(HDLCD_REG_GREEN_SELECT, (0 << 16 | 8 << 8 | 8)); + MmioWrite32(HDLCD_REG_BLUE_SELECT, (0 << 16 | 8 << 8 | 16)); + + return EFI_SUCCESS; +} + +EFI_STATUS +LcdSetMode ( + IN UINT32 ModeNumber + ) +{ + EFI_STATUS Status; + UINT32 HRes; + UINT32 HSync; + UINT32 HBackPorch; + UINT32 HFrontPorch; + UINT32 VRes; + UINT32 VSync; + UINT32 VBackPorch; + UINT32 VFrontPorch; + UINT32 BytesPerPixel; + LCD_BPP LcdBpp; + + + // Set the video mode timings and other relevant information + Status = LcdPlatformGetTimings (ModeNumber, + &HRes,&HSync,&HBackPorch,&HFrontPorch, + &VRes,&VSync,&VBackPorch,&VFrontPorch); + ASSERT_EFI_ERROR (Status); + if (EFI_ERROR( Status )) { + return EFI_DEVICE_ERROR; + } + + Status = LcdPlatformGetBpp (ModeNumber,&LcdBpp); + ASSERT_EFI_ERROR (Status); + if (EFI_ERROR( Status )) { + return EFI_DEVICE_ERROR; + } + + BytesPerPixel = GetBytesPerPixel(LcdBpp); + + // Disable the controller + MmioWrite32(HDLCD_REG_COMMAND, HDLCD_DISABLE); + + // Update the frame buffer information with the new settings + MmioWrite32(HDLCD_REG_FB_LINE_LENGTH, HRes * BytesPerPixel); + MmioWrite32(HDLCD_REG_FB_LINE_PITCH, HRes * BytesPerPixel); + MmioWrite32(HDLCD_REG_FB_LINE_COUNT, VRes - 1); + + // Set the vertical timing information + MmioWrite32(HDLCD_REG_V_SYNC, VSync); + MmioWrite32(HDLCD_REG_V_BACK_PORCH, VBackPorch); + MmioWrite32(HDLCD_REG_V_DATA, VRes - 1); + MmioWrite32(HDLCD_REG_V_FRONT_PORCH, VFrontPorch); + + // Set the horizontal timing information + MmioWrite32(HDLCD_REG_H_SYNC, HSync); + MmioWrite32(HDLCD_REG_H_BACK_PORCH, HBackPorch); + MmioWrite32(HDLCD_REG_H_DATA, HRes - 1); + MmioWrite32(HDLCD_REG_H_FRONT_PORCH, HFrontPorch); + + // Enable the controller + MmioWrite32(HDLCD_REG_COMMAND, HDLCD_ENABLE); + + return EFI_SUCCESS; +} + +VOID +LcdShutdown ( + VOID + ) +{ + // Disable the controller + MmioWrite32 (HDLCD_REG_COMMAND, HDLCD_DISABLE); +} + +EFI_STATUS +LcdIdentify ( + VOID + ) +{ + return EFI_SUCCESS; +} diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.h b/ArmPlatformPkg/Library/HdLcd/HdLcd.h new file mode 100644 index 0000000000..6df97a9dfe --- /dev/null +++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.h @@ -0,0 +1,89 @@ +/** @file HDLcd.h + + Copyright (c) 2011-2012, 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. + + **/ + +#ifndef _HDLCD_H_ +#define _HDLCD_H_ + +// +// HDLCD Controller Register Offsets +// + +#define HDLCD_REG_VERSION ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x000) +#define HDLCD_REG_INT_RAWSTAT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x010) +#define HDLCD_REG_INT_CLEAR ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x014) +#define HDLCD_REG_INT_MASK ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x018) +#define HDLCD_REG_INT_STATUS ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x01C) +#define HDLCD_REG_FB_BASE ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x100) +#define HDLCD_REG_FB_LINE_LENGTH ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x104) +#define HDLCD_REG_FB_LINE_COUNT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x108) +#define HDLCD_REG_FB_LINE_PITCH ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x10C) +#define HDLCD_REG_BUS_OPTIONS ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x110) +#define HDLCD_REG_V_SYNC ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x200) +#define HDLCD_REG_V_BACK_PORCH ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x204) +#define HDLCD_REG_V_DATA ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x208) +#define HDLCD_REG_V_FRONT_PORCH ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x20C) +#define HDLCD_REG_H_SYNC ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x210) +#define HDLCD_REG_H_BACK_PORCH ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x214) +#define HDLCD_REG_H_DATA ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x218) +#define HDLCD_REG_H_FRONT_PORCH ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x21C) +#define HDLCD_REG_POLARITIES ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x220) +#define HDLCD_REG_COMMAND ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x230) +#define HDLCD_REG_PIXEL_FORMAT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x240) +#define HDLCD_REG_RED_SELECT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x244) +#define HDLCD_REG_GREEN_SELECT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x248) +#define HDLCD_REG_BLUE_SELECT ((UINTN)PcdGet32 (PcdArmHdLcdBase) + 0x24C) + + +// +// HDLCD Values of registers +// + +// HDLCD Interrupt mask, clear and status register +#define HDLCD_DMA_END BIT0 /* DMA has finished reading a frame */ +#define HDLCD_BUS_ERROR BIT1 /* DMA bus error */ +#define HDLCD_SYNC BIT2 /* Vertical sync */ +#define HDLCD_UNDERRUN BIT3 /* No Data available while DATAEN active */ + +// CLCD_CONTROL Control register +#define HDLCD_DISABLE 0 +#define HDLCD_ENABLE BIT0 + +// Bus Options +#define HDLCD_BURST_1 BIT0 +#define HDLCD_BURST_2 BIT1 +#define HDLCD_BURST_4 BIT2 +#define HDLCD_BURST_8 BIT3 +#define HDLCD_BURST_16 BIT4 + +// Polarities - HIGH +#define HDLCD_VSYNC_HIGH BIT0 +#define HDLCD_HSYNC_HIGH BIT1 +#define HDLCD_DATEN_HIGH BIT2 +#define HDLCD_DATA_HIGH BIT3 +#define HDLCD_PXCLK_HIGH BIT4 +// Polarities - LOW (for completion and for ease of understanding the hardware settings) +#define HDLCD_VSYNC_LOW 0 +#define HDLCD_HSYNC_LOW 0 +#define HDLCD_DATEN_LOW 0 +#define HDLCD_DATA_LOW 0 +#define HDLCD_PXCLK_LOW 0 + +// Pixel Format +#define HDLCD_LITTLE_ENDIAN (0 << 31) +#define HDLCD_BIG_ENDIAN (1 << 31) + +// Number of bytes per pixel +#define HDLCD_4BYTES_PER_PIXEL ((4 - 1) << 3) + +#endif /* _HDLCD_H_ */ diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.inf b/ArmPlatformPkg/Library/HdLcd/HdLcd.inf new file mode 100644 index 0000000000..67aad05d21 --- /dev/null +++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.inf @@ -0,0 +1,42 @@ +#/** @file +# +# Component description file for HDLCD module +# +# Copyright (c) 2011-2012, 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. +# +#**/ + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = HdLcd + FILE_GUID = ce660500-824d-11e0-ac72-0002a5d5c51b + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = LcdHwLib + +[Sources.common] + HdLcd.c + +[Packages] + ArmPlatformPkg/ArmPlatformPkg.dec + ArmPkg/ArmPkg.dec + MdeModulePkg/MdeModulePkg.dec + MdePkg/MdePkg.dec + +[LibraryClasses] + ArmLib + UefiLib + BaseLib + DebugLib + IoLib + +[FixedPcd] + gArmPlatformTokenSpaceGuid.PcdArmHdLcdBase -- 2.39.2